max2042a sige、高线性度、1600mhz至3900mhz 上/下变频混 …

MAX2042ASiGe、高线性度、1600MHz至3900MHz

上/下变频混频器，带有LO缓冲器

19-5902; Rev 0; 6/11

定购信息在数据资料的最后给出。

相关型号以及配合该器件使用的推荐产品，请参见：china.maxim-ic.com/MAX2042A.related。

WiMAX是WiMAX论坛的商标。

备有评估板

概述

MAX2042A为单路、高线性度上/下变频混频器，能够在1 6 0 0 M H z 至 3 9 0 0 M H z 的 G S M / E D G E 、 C D M A 、TD-SCDMA、WCDMA、LTE、TD-LTE、WiMAXTM以及MMDS无线基础设施应用中提供+33dBm的输入IP3、7.25dB噪声系数和7.2dB转换损耗等高性能指标。这款IC具有1300MHz至4000MHz超宽LO频率范围，适用于所有1.7GHz至3.5GHz应用中的低边或高边LO注入结构(对于工作在2.5GHz的低边LO注入，请参考MAX2042)。

除具有优异的线性度和噪声性能外，该款IC还具有非常高的集成度。器件包括双平衡无源混频器核、LO缓冲器以及支持单端RF和LO输入的片内非平衡变压器。IC需要标称值为0dBm的LO驱动， VCC = 5.0V时，电源电流典型值为140mA；VCC = 3.3V时，电源电流为122mA。

MAX2042A引脚兼容于MAX2042 2000MHz至3000MHz混频器；MAX2042A的引脚排列与MAX2029/MAX2031/MAX2033 650MHz至1550MHz混频器、MAX2039/MAX2041 1700MHz至3000MHz混频器以及MAX2044 2300MHz至4000MHz混频器非常接近。因此，该系列上/下变频混频器可以采用相同的PCB布局支持多个频段的应用。

MAX2042A采用紧凑的20引脚、TQFN (5mm x 5mm)封装，带有裸焊盘。在TC = -40℃至+85℃扩展级温度范围内确保电气性能。

应用

1.8GHz/1.9GHz GSM/EDGE/CDMA基站

2.1GHz WCDMA/LTE基站

2.3GHz TD-SCDMA/TD-LTE基站

2.5GHz WiMAX和LTE基站

2.7GHz MMDS基站

3.5GHz WiMAX和LTE基站

固定宽带无线接入

无线本地环路

个人移动无线装置

军用系统

优势和特性

S 覆盖较宽的频带 1600MHz至3900MHz RF频率范围 1300MHz至4000MHz LO频率范围 50MHz至500MHz IF频率范围

S 7.2dB转换损耗

S 7.25dB噪声系数

S 高线性度 +33dBm输入IP3 +21.7dBm输入1dB压缩点 PRF = -10dBm时，具有72dBc (典型值)的2LO -

2RF杂散抑制

S 简单的PCB布局集成LO缓冲器内部LO和RF非平衡变压器支持单端输入

S -6dBm至+3dBm低LO驱动

S 引脚兼容于MAX2042 2000MHz至3000MHz混频器

S 引脚相似于MAX2029/MAX2031/MAX2033 650MHz至1550MHz混频器、MAX2039/MAX2041 1700MHz至3000MHz混频器以及MAX2044 2300MHz至4000MHz混频器

S 采用+5.0V或+3.3V单电源供电

S 外部电流设置电阻允许选择混频器的低功耗/低性能工作模式

�� Maxim Integrated Products 1

本文是英文数据资料的译文，文中可能存在翻译上的不准确或错误。如需进一步确认，请在您的设计中参考英文资料。有关价格、供货及订购信息，请联络Maxim亚洲销售中心：10800 852 1249 (北中国区)，10800 152 1249 (南中国区)，或访问Maxim的中文网站：china.maxim-ic.com。

http://china.maxim-ic.com/MAX2042A.related

http://china.maxim-ic.com/MAX2042A.related

http://china.maxim-ic.com




目录

Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Package Thermal Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

5 .0V Supply DC Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 .3V Supply DC Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Recommended AC operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

5 .0V Supply, RF = 2000MHz to 2900MHz, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (DOWNCONVERTER OPERATION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5


5 .0V Supply, RF = 3100MHz to 3900MHz, LOW-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (DOWNCONVERTER OPERATION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8


5 .0V Supply, RF = 1650MHz to 2250MHz, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (DOWNCONVERTER OPERATION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5 .0V Supply, RF = 1650MHz to 2250MHz, LOW-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (DOWNCONVERTER OPERATION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5 .0V Supply, RF = 2000MHz to 2900MHz, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (UPCONVERTER OPERATION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3 .3V Supply, RF = 2000MHz to 2900MHz, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (UPCONVERTER OPERATION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

典型工作特性 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

引脚配置 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

引脚说明 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

功能框图 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

详细说明 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

RF输入和非平衡变压器 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

LO输入、缓冲器和非平衡变压器. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

高线性度混频器 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

差分IF输出 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

应用信息 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

输入和输出匹配 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

降低功耗模式 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

布局考虑. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

电源旁路 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

裸焊盘的RF/散热考虑. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48




目录(续)

典型应用电路 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

定购信息 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

芯片信息 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

封装信息 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

修订历史 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

表1. 元件值—下变频模式. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

表2. 元件值—上变频模式 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

表目录




VCC to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0 .3V to +5 .5VIF+, IF-, LOBIAS to GND . . . . . . . . . . . . . . . . . . . . . . . . . -0 .3V to (VCC + 0 .3V)RF, LO Input Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+20dBm IF Input Power (50ω source) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+18dBmRF, LO Current (RF and LO are DC shorted to

GND through a balun) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50mA

Operating Case Temperature Range (Note 1) . . . . . . . -40NC to +85NCContinuous Power Dissipation (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 .0WJunction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+150NCStorage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65NC to +150NCLead Temperature (soldering 10s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+300NCSoldering Temperature (reflow) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+260NC

ABSOLUTE MAXIMUM RATINGS

Note 1: TC is the temperature on the exposed pad of the package . TA is the ambient temperature of the device and PCB .Note 2: Based on junction temperature TJ = TC + (BJC x VCC x ICC) . This formula can be used when the temperature of the

exposed pad is known while the device is soldered down to a PCB . See the Applications Information section for details . The junction temperature must not exceed +150NC .

Note 3: Junction temperature TJ = TA + (BJA x VCC x ICC) . This formula can be used when the ambient temperature of the PCB is known . The junction temperature must not exceed +150NC .

Note 4: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board . For detailed information on package thermal considerations, refer to china.maxim-ic.com/thermal-tutorial .

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-tion of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

TQFN Junction-to-Ambient Thermal Resistance BJA (Notes 3, 4) . . . . . . . . . . . . . . . . . . . . . . . +38°C/W

Junction-to-Case Thermal Resistance BJC (Notes 2, 4) . . . . . . . . . . . . . . . . . . . . . . . +13°C/W

PACKAGE THERMAL CHARACTERISTICS

5.0V SUPPLY DC ELECTRICAL CHARACTERISTICS(Typical Application Circuit, VCC = 4 .75V to 5 .25V, no input AC signals . TC = -40NC to +85NC, unless otherwise noted . Typical values are at VCC = 5 .0V, TC = +25NC .)

3.3V SUPPLY DC ELECTRICAL CHARACTERISTICS(Typical Application Circuit, VCC = 3 .0V to 3 .6V, no input AC applied . TC = -40NC to +85NC, unless otherwise noted . Typical values are at VCC = 3 .3V, TC = +25NC .)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Supply Voltage VCC 4 .75 5 5 .25 V

Supply Current ICC 140 162 mA


Supply Voltage VCC 3 .0 3 .3 3 .6 V

Supply Current ICC 122 mA

http://china.maxim-ic.com/thermal-tutorial




5.0V Supply, RF = 2000MHz to 2900MHz, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (DOWNCONVERTER OPERATION)(Typical Application Circuit with tuning elements outlined in Table 1, VCC = 4 .75V to 5 .25V, RF and LO ports are driven from 50I sources, PLO = -6dBm to +3dBm, PRF = 0dBm, fRF = 2000MHz to 2900MHz, fLO = 2300MHz to 3200MHz, fIF = 300MHz, fRF < fLO, TC = -40NC to +85NC . Typical values are for TC = +25NC, VCC = 5 .0V, PLO = 0dBm, fRF = 2600MHz, fLO = 2900MHz, fIF = 300MHz .) (Note 7)

RECOMMENDED AC OPERATING CONDITIONS


RF Frequency Range Without Tuning

fRF1Typical Application Circuit with C1 = 8 .2pF (Table 1) (Notes 5, 6)

2000 2900 MHz

RF Frequency Range With Low-Band Tuning

fRF2Typical Application Circuit with C1 = 1 .8pF, L1 = 12nH (Table 1) (Notes 5, 6)

1600 2000 MHz

RF Frequency Range With High-Band Tuning

fRF3Typical Application Circuit with C1 = 1 .5pF (Table 1) (Notes 5, 6)

3000 3900 MHz

LO Frequency fLO (Note 5, 6) 1300 4000 MHz

IF Frequency fIF

Using M/A-Com MABACT0069 1:1 transformer as defined in the Typical Application Circuit, IF matching components affect the IF frequency range (Notes 5, 6)

50 500 MHz

LO Drive PLO -6 0 +3 dBm


Small-Signal Conversion Loss LCfRF = 2600MHz, fLO = 2900MHz 7 .2

fRF = 2900MHz, fLO = 3200MHz (Note 8) 7 .8

Loss Variation vs . Frequency DLC

fRF = 2010MHz to 2025MHz Q0 .05 dB






Conversion Loss Temperature Coefficient

TCCL TC = -40NC to +85NC 0 .007 dB/NC

Single Sideband Noise Figure NFSSB No blockers present 7 .25 dB

Noise Figure Temperature Coefficient

TCNFfRF = 2600MHz, single sideband, no blockers present, TC = -40NC to +85NC

0 .022 dB/NC

Noise Figure Under Blocking NFBlocking

+8dBm blocker tone applied to RF port, fRF = 2600MHz, fLO = 2900MHz, fBLOCKER = 2400MHz (Note 9)

18 dB




5.0V Supply, RF = 2000MHz to 2900MHz, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (DOWNCONVERTER OPERATION) (continued)(Typical Application Circuit with tuning elements outlined in Table 1, VCC = 4 .75V to 5 .25V, RF and LO ports are driven from 50I sources, PLO = -6dBm to +3dBm, PRF = 0dBm, fRF = 2000MHz to 2900MHz, fLO = 2300MHz to 3200MHz, fIF = 300MHz, fRF < fLO, TC = -40NC to +85NC . Typical values are for TC = +25NC, VCC = 5 .0V, PLO = 0dBm, fRF = 2600MHz, fLO = 2900MHz, fIF = 300MHz .) (Note 7)


Input 1dB Compression Point IP1dB (Note 10) 21 .7 dBm

Third-Order Input Intercept Point

IIP3fRF1 - fRF2 = 1MHz, PRF1 = PRF2 = 0dBm (Note 8)

33 dBm

IIP3 Variation with TCfRF1 - fRF2 = 1MHz, PRF1 = PRF2 = 0dBm, TC = -40NC to +85NC

Q0 .3 dB

2LO - 2RF Spur Rejection 2 x 2fRF = 2600MHz, fLO = 2900MHz, fSPUR = 2750MHz

PRF = -10dBm 72dBc

PRF = 0dBm 62


PRF = -10dBm 91dBc

PRF = 0dBm 71

RF Input Return Loss RLRFLO on and IF terminated into a matched impedance

20 dB

LO Input Return Loss RLLORF and IF terminated into a matched impedance

19 dB

IF Output Impedance ZIFNominal differential impedance at the IC’s IF outputs

50 I

IF Return Loss RLIF

RF terminated into 50I, LO driven by 50I source, IF transformed to single-ended 50I using external components shown in the Typical Application Circuit

17 .5 dB

RF-to-IF Isolation PLO = +3dBm (Note 8) 38 dB

LO Leakage at RF Port PLO = +3dBm (Note 8) -29 dBm

2LO Leakage at RF Port PLO = +3dBm -30 .1 dBm

LO Leakage at IF Port PLO = +3dBm (Note 8) -31 dBm




3.3V Supply, RF = 2000MHz to 2900MHz, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (DOWNCONVERTER OPERATION)(Typical Application Circuit with tuning elements outlined in Table 1, RF and LO ports are driven from 50I sources, Typical values are for TC = +25NC, VCC = 3 .3V, PRF = 0dBm, PLO = 0dBm, fRF = 2600MHz, fLO = 2900MHz, fIF = 300MHz, unless otherwise noted .)


Small-Signal Conversion Loss LC (Note 8) 7 .4 dB

Loss Variation vs . Frequency DLC fRF = 2000MHz to 2900MHz, any 100MHz band Q0 .25 dB





TCNFSingle sideband, no blockers present, TC = -40NC to +85NC

0 .022 dB/NC



IIP3fRF1 = 2600MHz, fRF2 = 2601MHz, PRF1 = PRF2 = 0dBm

31 dBm

IIP3 Variation with TCfRF1 = 2600MHz, fRF2 = 2601MHz, PRF1 = PRF2 = 0dBm, TC = -40NC to +85NC

Q0 .1 dB


PRF = -10dBm 72dBc

PRF = 0dBm 62


PRF = -10dBm 85dBc

PRF = 0dBm 65


16 dB


32 dB


50 I

IF Return Loss RLIF


18 dB

RF-to-IF Isolation PLO = +3dBm 38 dB

LO Leakage at RF Port PLO = +3dBm -31 .5 dBm

2LO Leakage at RF Port PLO = +3dBm -30 dBm

LO Leakage at IF Port PLO = +3dBm -31 .4 dBm




5.0V Supply, RF = 3100MHz to 3900MHz, LOW-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (DOWNCONVERTER OPERATION)(Typical Application Circuit with tuning elements outlined in Table 1 . Typical values are for TC = +25NC, VCC = 5 .0V, PRF = 0dBm, PLO = 0dBm, fRF = 3500MHz, fLO = 3200MHz, fIF = 300MHz, unless otherwise noted .)


Small-Signal Conversion Loss LC 8 .2 dB

Loss Variation vs . Frequency DLCfRF = 3450MHz to 3750MHz, any 100MHz band Q0 .085 dB

fRF = 3450MHz to 3750MHz, any 200MHz band Q0 .17 dB






0 .025 dB/NC



IIP3 fRF1 - fRF2 = 1MHz, PRF1 = PRF2 = 0dBm 31 dBm

IIP3 Variation with TCfRF1 - fRF2 = 1MHz, PRF1 = PRF2 = 0dBm, TC = -40NC to +85NC

Q0 .5 dB

2RF - 2LO Spur Rejection 2 x 2fRF = 3500MHz, fLO = 3200MHz, fSPUR = 3350MHz

PRF = -10dBm 71dBc

PRF = 0dBm 61


PRF = -10dBm 87dBc

PRF = 0dBm 67


15 dB


20 dB


50 I

IF Return Loss RLIF


16 .5 dB



2LO Leakage at RF Port PLO = +3dBm -23 dBm





5.0V Supply, RF = 3100MHz to 3900MHz, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (DOWNCONVERTER OPERATION)(Typical Application Circuit with tuning elements outlined in Table 1 . Typical values are for TC = +25NC, VCC = 5 .0V, PRF = 0dBm, PLO = 0dBm, fRF = 3500MHz, fLO = 3800MHz, fIF = 300MHz, unless otherwise noted .)



Loss Variation vs . Frequency DLCfRF = 3450MHz to 3750MHz, any 100MHz band Q0 .1 dB

fRF = 3450MHz to 3750MHz, any 200MHz band Q0 .2 dB



Single Sideband Noise Figure

NFSSB No blockers present 9 dB



0 .025 dB/NC

Input 1dB Compression Point IP1dB (Note 10) 18 dBm



28 .6 dBm


Q0 .5 dB


PRF = -10dBm 70dBc

PRF = 0dBm 60


PRF = -10dBm 83dBc

PRF = 0dBm 63


15 .5 dB

LO Input Return Loss RLLO RF and IF terminated into a matched impedance 18 .5 dB


50 I

IF Return Loss RLIF


16 dB




LO Leakage at IF Port PLO = +3dBm -31 dBm




5.0V Supply, RF = 1650MHz to 2250MHz, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (DOWNCONVERTER OPERATION)(Typical Application Circuit with tuning elements outlined in Table 1 . Typical values are for TC = +25NC, VCC = 5 .0V, PRF = 0dBm, PLO = 0dBm, fRF = 1850MHz, fLO = 2150MHz, fIF = 300MHz, unless otherwise noted .)




fRF = 1650MHz to 1850MHz, any 100MHz band Q0 .18

dBfRF = 1850MHz to 2250MHz, any 100MHz band Q0 .15





Single Sideband Noise Figure NFSSB No blockers present 7 dB



0 .021 dB/NC




34 .8 dBm


Q0 .5 dB


PRF = -10dBm 83dBc

PRF = 0dBm 73


PRF = -10dBm 94dBc

PRF = 0dBm 74


16 .4 dB



50 I

IF Return Loss RLIF


17 dB

RF-to-IF Isolation PLO = +3dBm 48 .7 dB







5.0V Supply, RF = 1650MHz to 2250MHz, LOW-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (DOWNCONVERTER OPERATION)(Typical Application Circuit with tuning elements outlined in Table 1 . Typical values are for TC = +25NC, VCC = 5 .0V, PRF = 0dBm, PLO = 0dBm, fRF = 1850MHz, fLO = 1550MHz, fIF = 300MHz, unless otherwise noted .)





dBfRF = 1850MHz to 2250MHz, any 100MHz band Q0 .075





Single Sideband Noise Figure

NFSSB No blockers present 8 .95 dB



0 .024 dB/NC




26 .7 dBm


Q0 .5 dB


PRF = -10dBm 71dBc

PRF = 0dBm 61


PRF = -10dBm 83dBc

PRF = 0dBm 63


12 .4 dB



50 I

IF Return Loss RLIF


19 .3 dB

RF-to-IF Isolation PLO = +3dBm 44 .6 dB







5.0V Supply, RF = 2000MHz to 2900MHz, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (UPCONVERTER OPERATION)(Typical Application Circuit with tuning elements outlined in Table 2. Typical values are for TC = +25NC, VCC = 5 .0V, PIF = 0dBm, PLO = 0dBm, fRF = 2600MHz, fLO = 2900MHz, fIF = 300MHz, unless otherwise noted .)


Conversion Loss LC 7 .3 dB

Conversion Loss Variation vs . Frequency

DLC

fRF = 2010MHz to 2025MHz Q0 .05

dB

fRF = 2305MHz to 2360MHz Q0 .05

fRF = 2500MHz to 2570MHz Q0 .05

fRF = 2570MHz to 2620MHz Q0 .05

fRF = 2500MHz to 2690MHz Q0 .15

fRF = 2700MHz to 2900MHz Q0 .2




Input Third-Order Intercept Point

IIP3 fIF1 = 300MHz, fIF2 = 301MHz, PIF = 0dBm/tone 32 .8 dBm

IIP3 Variation with TC IIP3fIF1 = 300MHz, fIF2 = 301MHz, PIF = 0dBm/tone, TC = -40NC to +85NC

Q0 .5 dB

LO Q 2IF SpurLO - 2IF 61

dBcLO + 2IF 62


dBcLO + 3IF 85

Output Noise Floor POUT = 0dBm (Note 9) -163 dBm/Hz




3.3V Supply, RF = 2000MHz to 2900MHz, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (UPCONVERTER OPERATION)(Typical Application Circuit with tuning elements outlined in Table 2. Typical values are for TC = +25NC, VCC = 3 .3V, PIF = 0dBm, PLO = 0dBm, fRF = 2600MHz, fLO = 2900MHz, fIF = 300MHz, unless otherwise noted .)

Note 5: Not production tested .Note 6: Operation outside this range is possible, but with degraded performance of some parameters . See the Typical Operating

Characteristics .Note 7: All limits reflect losses of external components, including a 0 .5dB loss at fIF = 300MHz due to the 1:1 impedance

transformer . Output measurements were taken at IF outputs of the Typical Application Circuit .Note 8: 100% production tested for functional performance .Note 9: Measured with external LO source noise filtered so that the noise floor is -174dBm/Hz at 100MHz offset . This specification

reflects the effects of all SNR degradations in the mixer including the LO noise, as defined in Application Note 2021: Specifications and Measurement of Local Oscillator Noise in Integrated Circuit Base Station Mixers .

Note 10: Maximum reliable continuous input power applied to the RF or IF port of this device is +12dBm from a 50I source .


Conversion Loss LC 7 .3 dB

Conversion Loss Variation vs . Frequency

DLC fRF = 2000MHz to 2900MHz, any 100MHz band Q0 .25 dB




Input Third-Order Intercept Point

IIP3 fIF1 = 300MHz, fIF2 = 301MHz, PIF = 0dBm/tone 30 dBm

IIP3 Variation with TC IIP3fIF1 = 300MHz, fIF2 = 301MHz, PIF = 0dBm/tone, TC = -40NC to +85NC

Q0 .6 dB


dBcLO + 2IF 64


dBcLO + 3IF 80

Output Noise Floor POUT = 0dBm (Note 9) -160 dBm/Hz



上/下变频混频器，带有LO缓冲器典型工作特性

(Typical Application Circuit with tuning elements outlined in Table 1, VCC = 5.0V, fRF = 2000MHz to 2900MHz, LO is high-side injected for a 300MHz IF, PRF = 0dBm, PLO = 0dBm, TC = +25NC, unless otherwise noted .)

CONVERSION LOSS vs. RF FREQUENCYM

AX20

42A

toc0

1

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

26002300

6

7

8

9

52000 2900

TC = -40°C

TC = +85°C

TC = +25°C

CONVERSION LOSS vs. RF FREQUENCY

MAX

2042

A to

c02

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

26002300

6

7

8

9

52000 2900

PLO = -6dBm, -3dBm, 0dBm, +3dBm


MAX

2042

A to

c03

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

26002300

6

7

8

9

52000 2900

VCC = 4.75V, 5.0V, 5.25V

INPUT IP3 vs. RF FREQUENCY

MAX

2042

A to

c04

INPU

T IP

3 (d

Bm)

30

35

40

25

RF FREQUENCY (MHz)

260023002000 2900

TC = +85°C

TC = -40°C

TC = +25°C

PRF = 0dBm/TONE

INPUT IP3 vs. RF FREQUENCYM

AX20

42A

toc0

5

INPU

T IP

3 (d

Bm)

30

35

40

25

RF FREQUENCY (MHz)

260023002000 2900

PRF = 0dBm/TONE

PLO = -6dBm

PLO = -3dBm, 0dBm, +3dBm


MAX

2042

A to

c06

INPU

T IP

3 (d

Bm)

30

35

40

25

RF FREQUENCY (MHz)

260023002000 2900

PRF = 0dBm/TONE

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V

2LO - 2RF RESPONSE vs. RF FREQUENCY

MAX

2042

A to

c07

2LO

- 2RF

RES

PONS

E (d

Bc)

55

60

65

70

75

50

RF FREQUENCY (MHz)

260023002000 2900

TC = -40°C

TC = +85°CTC = +25°C

PRF = 0dBm


MAX

2042

A to

c08

2LO

- 2RF

RES

PONS

E (d

Bc)

55

60

65

70

75

50

RF FREQUENCY (MHz)

260023002000 2900

PLO = -6dBm

PLO = +3dBm

PLO = 0dBm

PLO = -3dBm

PRF = 0dBm


MAX

2042

A to

c09

2LO

- 2RF

RES

PONS

E (d

Bc)

55

60

65

70

75

50

RF FREQUENCY (MHz)

260023002000 2900

PRF = 0dBm

VCC = 4.75V, 5.0V, 5.25V



上/下变频混频器，带有LO缓冲器典型工作特性(续)


3LO - 3RF RESPONSE vs. RF FREQUENCYM

AX20

42A

toc1

0

3LO

- 3RF

RES

PONS

E (d

Bc)

65

75

85

55

RF FREQUENCY (MHz)

260023002000 2900

PRF = 0dBm

TC = -40°C, +25°C, +85°C


MAX

2042

A to

c11

3LO

- 3RF

RES

PONS

E (d

Bc)

65

75

85

55

RF FREQUENCY (MHz)

260023002000 2900

PRF = 0dBm



MAX

2042

A to

c12

3LO

- 3RF

RES

PONS

E (d

Bc)

65

75

85

55

RF FREQUENCY (MHz)

260023002000 2900

PRF = 0dBm

VCC = 5.25V

VCC = 5.0VVCC = 4.75V

NOISE FIGURE vs. RF FREQUENCY

MAX

2042

A to

c13

NOIS

E FI

GURE

(dB)

5

6

7

8

9

10

4

RF FREQUENCY (MHz)

260023002000 2900

TC = -40°C

TC = +85°C

TC = +25°C

NOISE FIGURE vs. RF FREQUENCYM

AX20

42A

toc1

4

NOIS

E FI

GURE

(dB)

5

6

7

8

9

10

4

RF FREQUENCY (MHz)

260023002000 2900



MAX

2042

A to

c15

NOIS

E FI

GURE

(dB)

5

6

7

8

9

10

4

RF FREQUENCY (MHz)

260023002000 2900

VCC = 4.75V, 5.0V, 5.25V

INPUT P1dB vs. RF FREQUENCY

MAX

2042

A to

c16

P 1dB

(dBm

)

19

21

23

25

17

RF FREQUENCY (MHz)

260023002000 2900

TC = -40°C

TC = +85°C

TC = +25°C


MAX

2042

A to

c17

P 1dB

(dBm

)

19

21

23

25

17

RF FREQUENCY (MHz)

260023002000 2900



MAX

2042

A to

c18

P 1dB

(dBm

)

19

21

23

25

17

RF FREQUENCY (MHz)

260023002000 2900

VCC = 5.25V

VCC = 5.0VVCC = 4.75V





LO LEAKAGE AT IF PORT vs. LO FREQUENCYM

AX20

42A

toc1

9

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

-30

-20

-10

-40

LO FREQUENCY (MHz)

290026002300 3200

TC = +85°C

TC = -40°CTC = +25°C

LO LEAKAGE AT RF PORT vs. LO FREQUENCY

MAX

2042

A to

c27

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

-35

-30

-25

-20

-40

LO FREQUENCY (MHz)

290026002300 3200

VCC = 5.25V

VCC = 4.75V VCC = 5.0V

LO LEAKAGE AT IF PORT vs. LO FREQUENCY

MAX

2042

A to

c20

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

-30

-20

-10

-40

LO FREQUENCY (MHz)

290026002300 3200



MAX

2042

A to

c21

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

-30

-20

-10

-40

LO FREQUENCY (MHz)

290026002300 3200

VCC = 4.75V, 5.0V, 5.25V

RF-TO-IF ISOLATION vs. RF FREQUENCY

MAX

2042

A to

c22

RF-T

O-IF

ISOL

ATIO

N (d

B)

30

40

50

60

20

RF FREQUENCY (MHz)

260023002000 2900

TC = +85°C

TC = -40°C TC = +25°C

RF-TO-IF ISOLATION vs. RF FREQUENCYM

AX20

42A

toc2

3

RF-T

O-IF

ISOL

ATIO

N (d

B)

30

40

50

60

20

RF FREQUENCY (MHz)

260023002000 2900



MAX

2042

A to

c24

RF-T

O-IF

ISOL

ATIO

N (d

B)

30

40

50

60

20

RF FREQUENCY (MHz)

260023002000 2900

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c25

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

-35

-30

-25

-20

-40

LO FREQUENCY (MHz)

290026002300 3200

TC = -40°C, +25°C, +85°C


MAX

2042

A to

c26

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

-35

-30

-25

-20

-40

LO FREQUENCY (MHz)

290026002300 3200






2LO LEAKAGE AT RF PORT vs. LO FREQUENCYM

AX20

42A

toc2

8

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

-45

-40

-35

-30

-25

-20

-50

LO FREQUENCY (MHz)

290026002300 3200

TC = -40°C

TC = +85°C

TC = +25°C

2LO LEAKAGE AT RF PORT vs. LO FREQUENCY

MAX

2042

A to

c29

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

-45

-40

-35

-30

-25

-20

-50

LO FREQUENCY (MHz)

290026002300 3200



MAX

2042

A to

c30

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

-45

-40

-35

-30

-25

-20

-50

LO FREQUENCY (MHz)

290026002300 3200

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V

RF PORT RETURN LOSS vs. RF FREQUENCY

MAX

2042

A to

c31

RF FREQUENCY (MHz)

RF P

ORT

RETU

RN L

OSS

(dB)

2800260024002200

25

20

15

10

5

0

302000 3000


IF = 300MHz

IF PORT RETURN LOSS vs. IF FREQUENCY

MAX

2042

A to

c32

IF FREQUENCY (MHz)

IF P

ORT

RETU

RN L

OSS

(dB)

410320230140

25

20

15

10

5

0

3050 500

LO = 2900MHz

VCC = 4.75V, 5.0V, 5.25V

40

30

20

10

LO RETURN LOSS vs. LO FREQUENCY

MAX

2042

A to

c33

LO FREQUENCY (MHz)

LO R

ETUR

N LO

SS (d

B)

0

501000 40003400280022001600

PLO = 0dBm

PLO = -3dBm

PLO = -6dBmPLO = +3dBm

SUPPLY CURRENT vs. TEMPERATURE (TC)

MAX

2042

A to

c34

EXPOSED PAD TEMPERATURE (°C)

SUPP

LY C

URRE

NT (m

A)

603510-15

130

135

140

145

150

155

125-40 85

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V






AX20

42A

toc3

5

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

26002300

6

7

8

9

52000 2900

TC = -40°C

TC = +85°CTC = +25°C


MAX

2042

A to

c36

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

26002300

6

7

8

9

52000 2900



MAX

2042

A to

c37

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

26002300

6

7

8

9

52000 2900

VCC = 3.0V, 3.3V, 3.6V


MAX

2042

A to

c38

INPU

T IP

3 (d

Bm)

27

29

31

33

35

25

RF FREQUENCY (MHz)

260023002000 2900

TC = -40°C, +25°C, +85°C

PRF = 0dBm/TONE


AX20

42A

toc3

9

INPU

T IP

3 (d

Bm)

27

29

31

33

35

25

RF FREQUENCY (MHz)

260023002000 2900

PRF = 0dBm/TONE



MAX

2042

A to

c40

INPU

T IP

3 (d

Bm)

27

29

31

33

35

25

RF FREQUENCY (MHz)

260023002000 2900

PRF = 0dBm/TONE

VCC = 3.6V

VCC = 3.3V VCC = 3.0V


MAX

2042

A to

c41

2LO

- 2RF

RES

PONS

E (d

Bc)

55

60

65

70

75

50

RF FREQUENCY (MHz)

260023002000 2900

PRF = 0dBm

TC = -40°C, +25°C, +85°C


MAX

2042

A to

c42

2LO

- 2RF

RES

PONS

E (d

Bc)

55

60

65

70

75

50

RF FREQUENCY (MHz)

260023002000 2900

PRF = 0dBm

PLO = -3dBm

PLO = 0dBmPLO = +3dBm

PLO = -6dBm


MAX

2042

A to

c43

2LO

- 2RF

RES

PONS

E (d

Bc)

55

60

65

70

75

50

RF FREQUENCY (MHz)

260023002000 2900

PRF = 0dBm

VCC = 3.6V

VCC = 3.0V

VCC = 3.3V






AX20

42A

toc4

4

3LO

- 3RF

RES

PONS

E (d

Bc)

60

65

70

75

55

RF FREQUENCY (MHz)

260023002000 2900

PRF = 0dBm

TC = -40°C, +25°C, +85°C


MAX

2042

A to

c45

3LO

- 3RF

RES

PONS

E (d

Bc)

60

65

70

75

55

RF FREQUENCY (MHz)

260023002000 2900

PRF = 0dBm



MAX

2042

A to

c46

3LO

- 3RF

RES

PONS

E (d

Bc)

60

65

70

75

55

RF FREQUENCY (MHz)

260023002000 2900

PRF = 0dBm

VCC = 3.6V

VCC = 3.0V

VCC = 3.3V


MAX

2042

A to

c47

NOIS

E FI

GURE

(dB)

5

6

7

8

9

10

4

RF FREQUENCY (MHz)

260023002000 2900

TC = -40°C

TC = +85°C

TC = +25°C


AX20

42A

toc4

8

NOIS

E FI

GURE

(dB)

5

6

7

8

9

10

4

RF FREQUENCY (MHz)

260023002000 2900



MAX

2042

A to

c49

NOIS

E FI

GURE

(dB)

5

6

7

8

9

10

4

RF FREQUENCY (MHz)

260023002000 2900

VCC = 3.0V

VCC = 3.3V

VCC = 3.6V


MAX

2042

A to

c50

P 1dB

(dBm

)

18

20

22

24

16

RF FREQUENCY (MHz)

260023002000 2900

TC = -40°C

TC = +85°C

TC = +25°C


MAX

2042

A to

c51

P 1dB

(dBm

)

18

20

22

24

16

RF FREQUENCY (MHz)

260023002000 2900



MAX

2042

A to

c52

P 1dB

(dBm

)

18

20

22

24

16

RF FREQUENCY (MHz)

260023002000 2900

VCC = 3.6V

VCC = 3.0V

VCC = 3.3V






AX20

42A

toc5

3

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

-30

-20

-10

-40

LO FREQUENCY (MHz)

290026002300 3200

TC = +85°C

TC = -40°C

TC = +25°C


MAX

2042

A to

c61

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

-35

-30

-25

-20

-40

LO FREQUENCY (MHz)

290026002300 3200

VCC = 3.6V

VCC = 3.0V VCC = 3.3V


MAX

2042

A to

c54

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

-30

-20

-10

-40

LO FREQUENCY (MHz)

290026002300 3200



MAX

2042

A to

c55

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

-30

-20

-10

-40

LO FREQUENCY (MHz)

290026002300 3200

VCC = 3.0V, 3.3V, 3.6V


MAX

2042

A to

c56

RF-T

O-IF

ISOL

ATIO

N (d

B)

30

40

50

60

20

RF FREQUENCY (MHz)

260023002000 2900

TC = +85°C

TC = -40°CTC = +25°C


AX20

42A

toc5

7

RF-T

O-IF

ISOL

ATIO

N (d

B)

30

40

50

60

20

RF FREQUENCY (MHz)

260023002000 2900



MAX

2042

A to

c58

RF-T

O-IF

ISOL

ATIO

N (d

B)

30

40

50

60

20

RF FREQUENCY (MHz)

260023002000 2900

VCC = 3.0V, 3.3V, 3.6V


MAX

2042

A to

c59

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

-35

-30

-25

-20

-40

LO FREQUENCY (MHz)

290026002300 3200

TC = -40°C, +25°C, +85°C


MAX

2042

A to

c60

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

-35

-30

-25

-20

-40

LO FREQUENCY (MHz)

290026002300 3200







AX20

42A

toc6

2

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

-45

-40

-35

-30

-25

-20

-50

LO FREQUENCY (MHz)

290026002300 3200

TC = -40°C

TC = +85°C TC = +25°C


MAX

2042

A to

c63

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

-45

-40

-35

-30

-25

-20

-50

LO FREQUENCY (MHz)

290026002300 3200



MAX

2042

A to

c64

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

-45

-40

-35

-30

-25

-20

-50

LO FREQUENCY (MHz)

290026002300 3200

VCC = 3.6V

VCC = 3.3V

VCC = 3.0V


MAX

2042

A to

c65

RF FREQUENCY (MHz)

RF P

ORT

RETU

RN L

OSS

(dB)

2800260024002200

25

20

15

10

5

0

302000 3000


IF = 300MHz


MAX

2042

A to

c66

IF FREQUENCY (MHz)

IF P

ORT

RETU

RN L

OSS

(dB)

410320230140

25

20

15

10

5

0

3050 500

LO = 2900MHz

VCC = 3.0V, 3.3V, 3.6V

50

40

30

20

10


MAX

2042

A to

c67

LO FREQUENCY (MHz)

LO R

ETUR

N LO

SS (d

B)

0

601000 40003400280022001600

PLO = -3dBm

PLO = +3dBm

PLO = 0dBmPLO = -6dBm


MAX

2042

A to

c68


SUPP

LY C

URRE

NT (m

A)

603510-15

115

120

125

130

135

140

110-40 85

VCC = 3.6V

VCC = 3.3V

VCC = 3.0V




(Typical Application Circuit with tuning elements outlined in Table 1, VCC = 5.0V, fRF = 3100MHz to 3900MHz, LO is low-side injected for a 300MHz IF, PRF = 0dBm, PLO = 0dBm, TC = +25NC, unless otherwise noted .)


AX20

42A

toc6

9

RF FREQUENCY (MHz)

TC = -40°C

CONV

ERSI

ON L

OSS

(dB)

370035003300

7

8

9

10

11

63100 3900

TC = +25°CTC = +85°C


MAX

2042

A to

c70

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

370035003300

7

8

9

10

11

63100 3900



MAX

2042

A to

c71

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

370035003300

7

8

9

10

11

63100 3900

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c72

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

370035003300

30

35

40

253100 3900

TC = +85°C

TC = +25°C

TC = -40°C

PRF = 0dBm/TONE


AX20

42A

toc7

3

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

370035003300

30

35

40

253100 3900

PRF = 0dBm/TONE


PLO = -6dBm


MAX

2042

A to

c74

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

370035003300

30

35

40

253100 3900

PRF = 0dBm/TONE

VCC = 4.75V

VCC = 5.0V

VCC = 5.25V

2RF - 2LO RESPONSE vs. RF FREQUENCY

MAX

2042

A to

c75

RF FREQUENCY (MHz)

2RF

- 2LO

RES

PONS

E (d

Bc)

370035003300

55

60

65

70

75

503100 3900

PRF = 0dBm

TC = +85°CTC = +25°C

TC = -40°C


MAX

2042

A to

c76

RF FREQUENCY (MHz)

2RF

- 2LO

RES

PONS

E (d

Bc)

370035003300

55

60

65

70

75

503100 3900

PRF = 0dBm

PLO = +3dBm

PLO = -6dBm

PLO = 0dBm

PLO = -3dBm


MAX

2042

A to

c77

RF FREQUENCY (MHz)

2RF

- 2LO

RES

PONS

E (d

Bc)

370035003300

55

60

65

70

75

503100 3900

PRF = 0dBm

VCC = 4.75V, 5.0V, 5.25V





3RF - 3LO RESPONSE vs. RF FREQUENCYM

AX20

42A

toc7

8

RF FREQUENCY (MHz)

3RF

- 3LO

RES

PONS

E (d

Bc)

370035003300

65

75

85

553100 3900

PRF = 0dBm

TC = -40°C, +25°C, +85°C


MAX

2042

A to

c79

RF FREQUENCY (MHz)

3RF

- 3LO

RES

PONS

E (d

Bc)

370035003300

65

75

85

553100 3900

PRF = 0dBm



MAX

2042

A to

c80

RF FREQUENCY (MHz)

3RF

- 3LO

RES

PONS

E (d

Bc)

370035003300

65

75

85

553100 3900

PRF = 0dBm

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c81

RF FREQUENCY (MHz)

NOIS

E FI

GURE

(dB)

370035003300

6

8

10

12

43100 3900

TC = +85°C

TC = +25°C

TC = -40°C


AX20

42A

toc8

2

RF FREQUENCY (MHz)

NOIS

E FI

GURE

(dB)

370035003300

6

8

10

12

43100 3900



MAX

2042

A to

c83

RF FREQUENCY (MHz)

NOIS

E FI

GURE

(dB)

370035003300

6

8

10

12

43100 3900

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c84

RF FREQUENCY (MHz)

P 1dB

(dBm

)

370035003300

19

21

23

25

173100 3900

TC = +85°C

TC = +25°C

TC = -40°C


MAX

2042

A to

c85

RF FREQUENCY (MHz)

P 1dB

(dBm

)

370035003300

19

21

23

25

173100 3900



MAX

2042

A to

c86

RF FREQUENCY (MHz)

P 1dB

(dBm

)

370035003300

19

21

23

25

173100 3900

VCC = 4.75V

VCC = 5.0V

VCC = 5.25V






AX20

42A

toc8

7

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

340032003000

-30

-20

-10

-402800 3600

TC = +85°C

TC = -40°CTC = +25°C


MAX

2042

A to

c95

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

340032003000

-35

-30

-25

-20

-402800 3600

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c88

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

340032003000

-30

-20

-10

-402800 3600



MAX

2042

A to

c89

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

340032003000

-30

-20

-10

-402800 3600

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c90

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

370035003300

30

40

50

60

203100 3900

TC = +85°C

TC = -40°C

TC = +25°C


AX20

42A

toc9

1

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

370035003300

30

40

50

60

203100 3900



MAX

2042

A to

c92

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

370035003300

30

40

50

60

203100 3900

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c93

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

340032003000

-35

-30

-25

-20

-402800 3600

TC = +85°C

TC = +25°C

TC = -40°C


MAX

2042

A to

c94

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

340032003000

-35

-30

-25

-20

-402800 3600







AX20

42A

toc9

6

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

340032003000

-35

-30

-25

-20

-15

-10

-402800 3600

TC = +85°C

TC = +25°C

TC = -40°C


MAX

2042

A to

c97

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

340032003000

-35

-30

-25

-20

-15

-10

-402800 3600

PLO = -6dBm, -3dBm

PLO = 3dBm

PLO = -0dBm


MAX

2042

A to

c98

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

340032003000

-35

-30

-25

-20

-15

-10

-402800 3600

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c99

RF FREQUENCY (MHz)

RF P

ORT

RETU

RN L

OSS

(dB)

3800360034003200

25

20

15

10

5

0

303000 4000

IF = 300MHz



MAX

2042

A to

c100

IF FREQUENCY (MHz)

IF P

ORT

RETU

RN L

OSS

(dB)

410320230140

25

20

15

10

5

0

3050 500

LO = 3200MHz

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c101

LO FREQUENCY (MHz)

LO R

ETUR

N LO

SS (d

B)

3500330031002900

30

20

10

0

402700 3700

PLO = +3dBm

PLO = -3dBmPLO = -6dBm PLO = -0dBm


MAX

2042

A to

c102


SUPP

LY C

URRE

NT (m

A)

603510-15

130

135

140

145

150

155

125-40 85

VCC = 4.75V

VCC = 5.25V

VCC = 5.0V






MAX

2042

A to

c104

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

370035003300

7

8

9

10

11

63100 3900



AX20

42A

toc1

03

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

370035003300

7

8

9

10

11

63100 3900

TC = +85°CTC = +25°C

TC = -40°C


MAX

2042

A to

c105

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

370035003300

7

8

9

10

11

63100 3900

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c106

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

370035003300

25

30

35

203100 3900

TC = +85°C

TC = +25°CTC = -40°C

PRF = 0dBm/TONE


MAX

2042

A to

c109

RF FREQUENCY (MHz)

2LO

- 2RF

RES

PONS

E (d

Bc)

370035003300

55

60

65

70

75

503100 3900

TC = +85°C

TC = +25°C

PRF = 0dBm

TC = -40°C


AX20

42A

toc1

07

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

370035003300

25

30

35

203100 3900

PRF = 0dBm/TONE


PLO = -6dBm


MAX

2042

A to

c110

RF FREQUENCY (MHz)

2LO

- 2RF

RES

PONS

E (d

Bc)

370035003300

55

60

65

70

75

503100 3900

PLO = -6dBm

PLO = -3dBmPLO = +3dBmPLO = 0dBm

PRF = 0dBm


MAX

2042

A to

c108

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

370035003300

25

30

35

203100 3900

PRF = 0dBm/TONE

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c111

RF FREQUENCY (MHz)

2LO

- 2RF

RES

PONS

E (d

Bc)

370035003300

55

60

65

70

75

503100 3900

PRF = 0dBm

VCC = 4.75V, 5.0V, 5.25V






AX20

42A

toc1

12

RF FREQUENCY (MHz)

3LO

- 3RF

RES

PONS

E (d

Bc)

370035003300

55

60

65

70

75

503100 3900

TC = -40°C, +25°C, +85°C

PRF = 0dBm


MAX

2042

A to

c113

RF FREQUENCY (MHz)

3LO

- 3RF

RES

PONS

E (d

Bc)

370035003300

55

60

65

70

75

503100 3900


PRF = 0dBm


MAX

2042

A to

c114

RF FREQUENCY (MHz)

3LO

- 3RF

RES

PONS

E (d

Bc)

370035003300

55

60

65

70

75

503100 3900

VCC = 4.75V, 5.0V, 5.25V

PRF = 0dBm


MAX

2042

A to

c115

RF FREQUENCY (MHz)

NOIS

E FI

GURE

(dB)

355034003250

6

8

10

12

43100 3700

TC = -40°CTC = +25°C

TC = +85°C


MAX

2042

A to

c118

RF FREQUENCY (MHz)

P 1dB

(dBm

)

370035003300

17

19

21

153100 3900

TC = +25°C

TC = -40°C

TC = +85°C


AX20

42A

toc1

16

RF FREQUENCY (MHz)

NOIS

E FI

GURE

(dB)

355034003250

6

8

10

12

43100 3700

PLO = 0dBm, +3dBm

PLO = -6dBm

PLO = -3dBm


MAX

2042

A to

c119

RF FREQUENCY (MHz)

P 1dB

(dBm

)

370035003300

17

19

21

153100 3900

PLO = -6dBm



MAX

2042

A to

c117

RF FREQUENCY (MHz)

NOIS

E FI

GURE

(dB)

355034003250

6

8

10

12

43100 3700

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c120

RF FREQUENCY (MHz)

P 1dB

(dBm

)

370035003300

17

19

21

153100 3900

VCC = 4.75V

VCC = 5.0V

VCC = 5.25V






AX20

42A

toc1

21

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

400038003600

-40

-30

-20

-10

-503400 4200

TC = +85°C

TC = +25°C

TC = -40°C


MAX

2042

A to

c129

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

400038003600

-40

-35

-30

-25

-453400 4200

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c122

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

400038003600

-40

-30

-20

-10

-503400 4200



MAX

2042

A to

c123

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

400038003600

-40

-30

-20

-10

-503400 4200

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c124

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

370035003300

30

40

50

60

203100 3900

TC = -40°C

TC = +25°CTC = +85°C


AX20

42A

toc1

25

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

370035003300

30

40

50

60

203100 3900



MAX

2042

A to

c126

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

370035003300

30

40

50

60

203100 3900

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c127

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

400038003600

-40

-35

-30

-25

-453400 4200

TC = +85°CTC = +25°C

TC = -40°C


MAX

2042

A to

c128

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

400038003600

-40

-35

-30

-25

-453400 4200







AX20

42A

toc1

30

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

400038003600

-25

-20

-15

-10

-5

0

-303400 4200

TC = +85°C

TC = +25°C

TC = -40°C


MAX

2042

A to

c131

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

400038003600

-25

-20

-15

-10

-5

0

-303400 4200

PLO = -6dBm, -3dBm

PLO = 0dBm

PLO = 3dBm


MAX

2042

A to

c132

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

400038003600

-25

-20

-15

-10

-5

0

-303400 4200

VCC = 4.75V, 5.0V, 5.25V

RF FREQUENCY (MHz)

RF P

ORT

RETU

RN L

OSS

(dB)

3800360034003200

25

20

15

10

5

0

303000 4000


MAX

2042

A to

c133

IF = 300MHz


IF FREQUENCY (MHz)

IF P

ORT

RETU

RN L

OSS

(dB)

410320230140

25

20

15

10

5

0

3050 500


MAX

2042

A to

c134

LO = 3800MHz

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c135

LO FREQUENCY (MHz)

LO R

ETUR

N LO

SS (d

B)

4100390037003500

30

20

10

0

403300 4300

PLO = 0dBm PLO = -3dBm



SUPP

LY C

URRE

NT (m

A)

603510-15

130

135

140

145

150

155

125-40 85

SUPPLY CURRENT vs.TEMPERATURE (TC)

MAX

2042

A to

c136

VCC = 4.75V

VCC = 5.25V

VCC = 5.0V




Typical Operating Characteristics (continued)


典型工作特性(续)


AX20

42A

toc1

37

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

20501850

7

8

9

10

61650 2250

TC = -40°C

TC = +85°C

TC = +25°C


MAX

2042

A to

c138

CONV

ERSI

ON L

OSS

(dB)

PLO = -6dBm, -3dBm, 0dBm, +3dBm7

8

9

10

6

RF FREQUENCY (MHz)

205018501650 2250


MAX

2042

A to

c139

VCC = 4.75V, 5.0V, 5.25VCONV

ERSI

ON L

OSS

(dB)

7

8

9

10

6

RF FREQUENCY (MHz)

205018501650 2250


MAX

2042

A to

c140

INPU

T IP

3 (d

Bm)

25

30

35

40

20

RF FREQUENCY (MHz)

205018501650 2250

PRF = 0dBm/TONETC = +25°C

TC = +85°C

TC = -40°C


AX20

42A

toc1

41

INPU

T IP

3 (d

Bm)

25

30

35

40

20

RF FREQUENCY (MHz)

205018501650 2250

PRF = 0dBm/TONE



MAX

2042

A to

c142

INPU

T IP

3 (d

Bm)

25

30

35

40

20

RF FREQUENCY (MHz)

205018501650 2250

PRF = 0dBm/TONE

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c143

2LO

- 2RF

RES

PONS

E (d

Bc)

60

70

80

50

PRF = 0dBm

RF FREQUENCY (MHz)

205018501650 2250

TC = -40°C

TC = +85°C

TC = +25°C


MAX

2042

A to

c144

2LO

- 2RF

RES

PONS

E (d

Bc)

60

70

80

50

PRF = 0dBm

RF FREQUENCY (MHz)

205018501650 2250

PLO = -6dBm

PLO = +3dBm

PLO = 0dBm

PLO = -3dBm


MAX

2042

A to

c145

2LO

- 2RF

RES

PONS

E (d

Bc)

60

70

80

50

PRF = 0dBm

RF FREQUENCY (MHz)

205018501650 2250

VCC = 4.75V, 5.0V, 5.25V




Typical Operating Characteristics (continued)


典型工作特性(续)


AX20

42A

toc1

46

3LO

- 3RF

RES

PONS

E (d

Bc)

60

70

80

50

PRF = 0dBm

RF FREQUENCY (MHz)

205018501650 2250

TC = -40°C

TC = +85°CTC = +25°C


MAX

2042

A to

c147

3LO

- 3RF

RES

PONS

E (d

Bc)

60

70

80

50

PRF = 0dBm

RF FREQUENCY (MHz)

205018501650 2250



MAX

2042

A to

c148

3LO

- 3RF

RES

PONS

E (d

Bc)

60

70

80

50

PRF = 0dBm

RF FREQUENCY (MHz)

205018501650 2250

VCC = 4.75V, 5.0V, 5.25V

6

7

8

9


MAX

2042

A to

c149

RF FREQUENCY (MHz)

NOIS

E FI

GURE

(dB)

20501850

10

51650 2250

TC = -40°C

TC = +85°C

TC = +25°C

6

7

8

9


AX20

42A

toc1

50

RF FREQUENCY (MHz)

NOIS

E FI

GURE

(dB)

20501850

10

51650 2250


7

8

9


MAX

2042

A to

c151

RF FREQUENCY (MHz)

NOIS

E FI

GURE

(dB)

20501850

10

51650 2250

VCC = 4.75V, 5.0V, 5.25V

21

23


MAX

2042

A to

c152

P 1dB

(dBm

)

25

19

TC = -40°C

TC = +85°CTC = +25°C

RF FREQUENCY (MHz)

205018501650 2250

21

23


MAX

2042

A to

c153

P 1dB

(dBm

)

25

19

RF FREQUENCY (MHz)

205018501650 2250


21

23


MAX

2042

A to

c154

P 1dB

(dBm

)

25

19

RF FREQUENCY (MHz)

205018501650 2250

VCC = 5.25V

VCC = 5.0VVCC = 4.75V





-30

-20


AX20

42A

toc1

55

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

-10

-40

LO FREQUENCY (MHz)

235021501950 2550

TC = +85°C

TC = -40°C

TC = +25°C

-30

-20


MAX

2042

A to

c163

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

-10

-40

LO FREQUENCY (MHz)

235021501950 2550

VCC = 5.25VVCC = 5.0V

VCC = 4.75V

-30

-20


MAX

2042

A to

c156

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

-10

-40

LO FREQUENCY (MHz)

235021501950 2550


-30

-20


MAX

2042

A to

c157

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

-10

-40

LO FREQUENCY (MHz)

235021501950 2550

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c158

RF-T

O-IF

ISOL

ATIO

N (d

B)

30

40

50

60

20

TC = +85°C

TC = -40°C

TC = +25°C

RF FREQUENCY (MHz)

205018501650 2250


AX20

42A

toc1

59

RF-T

O-IF

ISOL

ATIO

N (d

B)

30

40

50

60

20

RF FREQUENCY (MHz)

205018501650 2250



MAX

2042

A to

c160

RF-T

O-IF

ISOL

ATIO

N (d

B)

30

40

50

60

20

RF FREQUENCY (MHz)

205018501650 2250

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V

-30

-20


MAX

2042

A to

c161

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

-10

-40

LO FREQUENCY (MHz)

235021501950 2550

TC = -40°C, +25°C, +85°C

-30

-20


MAX

2042

A to

c162

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

-10

-40

LO FREQUENCY (MHz)

235021501950 2550







AX20

42A

toc1

64

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

23502150

-40

-30

-20

-10

-501950 2550

TC = -40°C

TC = +85°C

TC = +25°C


MAX

2042

A to

c165

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

23502150

-40

-30

-20

-10

-501950 2550



MAX

2042

A to

c166

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

23502150

-40

-30

-20

-10

-501950 2550

VCC = 5.25V

VCC = 4.75VVCC = 5.0V

215019501750


MAX

2042

A to

c167

RF FREQUENCY (MHz)

RF P

ORT

RETU

RN L

OSS

(dB)

25

20

15

10

5

0

301550 2350


IF = 300MHz


MAX

2042

A to

c168

IF FREQUENCY (MHz)

41032023014050 500

IF P

ORT

RETU

RN L

OSS

(dB)

25

20

15

10

5

0

30

LO = 2150MHz

VCC = 4.75V, 5.0V, 5.25V

245022502050


MAX

2042

A to

c169

LO FREQUENCY (MHz)

LO R

ETUR

N LO

SS (d

B)

0

501850 2650

40

30

20

10

PLO = -3dBm

PLO = -6dBm

PLO = 0dBmPLO = +3dBm


MAX

2042

A to

c170


SUPP

LY C

URRE

NT (m

A)

603510-15

130

135

140

145

150

155

125-40 85

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V






AX20

42A

toc1

71

CONV

ERSI

ON L

OSS

(dB)

7

8

9

10

11

6

RF FREQUENCY (MHz)

205018501650 2250

TC = -40°C

TC = +85°CTC = +25°C


MAX

2042

A to

c172

CONV

ERSI

ON L

OSS

(dB)

7

8

9

10

11

6

RF FREQUENCY (MHz)

205018501650 2250



MAX

2042

A to

c173

CONV

ERSI

ON L

OSS

(dB)

7

8

9

10

11

6

RF FREQUENCY (MHz)

205018501650 2250

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c174

INPU

T IP

3 (d

Bm)

25

30

35

20

TC = +85°C

TC = -40°C TC = +25°C

PRF = 0dBm/TONE

RF FREQUENCY (MHz)

205018501650 2250


AX20

42A

toc1

75

INPU

T IP

3 (d

Bm)

25

30

35

20

PRF = 0dBm/TONE

RF FREQUENCY (MHz)

205018501650 2250



MAX

2042

A to

c176

INPU

T IP

3 (d

Bm)

25

30

35

20

PRF = 0dBm/TONE

RF FREQUENCY (MHz)

205018501650 2250

VCC = 5.25VVCC = 5.0V

VCC = 4.75V


MAX

2042

A to

c177

2RF

- 2LO

RES

PONS

E (d

Bc)

55

60

65

70

75

50

PRF = 0dBm

RF FREQUENCY (MHz)

205018501650 2250

TC = +85°CTC = -40°C

TC = +25°C


MAX

2042

A to

c178

2RF

- 2LO

RES

PONS

E (d

Bc)

55

60

65

70

75

50

PRF = 0dBm

RF FREQUENCY (MHz)

205018501650 2250

PLO = 0dBm

PLO = -6dBm

PLO = -3dBm

PLO = +3dBm


MAX

2042

A to

c179

2RF

- 2LO

RES

PONS

E (d

Bc)

55

60

65

70

75

50

PRF = 0dBm

RF FREQUENCY (MHz)

205018501650 2250

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V





3RF - 3LO RESPONSE vs. RF FREQUENCYM

AX20

42A

toc1

80

3RF

- 3LO

RES

PONS

E (d

Bc)

60

70

80

50

TC = +85°C

TC = -40°CTC = +25°C

PRF = 0dBm

RF FREQUENCY (MHz)

205018501650 2250


MAX

2042

A to

c181

3RF

- 3LO

RES

PONS

E (d

Bc)

60

70

80

50

PRF = 0dBm

RF FREQUENCY (MHz)

205018501650 2250



MAX

2042

A to

c182

3RF

- 3LO

RES

PONS

E (d

Bc)

60

70

80

50

PRF = 0dBm

RF FREQUENCY (MHz)

205018501650 2250

VCC = 5.25V

VCC = 5.0VVCC = 4.75V


MAX

2042

A to

c183

NOIS

E FI

GURE

(dB)

7

9

11

13

15

5

TC = +85°C

TC = -40°C

TC = +25°C

RF FREQUENCY (MHz)

205018501650 2250


AX20

42A

toc1

84

NOIS

E FI

GURE

(dB)

7

9

11

13

15

5

RF FREQUENCY (MHz)

205018501650 2250



MAX

2042

A to

c185

NOIS

E FI

GURE

(dB)

7

9

11

13

15

5

RF FREQUENCY (MHz)

205018501650 2250

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c186

P 1dB

(dBm

)

16

18

20

22

24

14

RF FREQUENCY (MHz)

205018501650 2250

TC = -40°CTC = +85°C

TC = +25°C


MAX

2042

A to

c187

P 1dB

(dBm

)

16

18

20

22

24

14

RF FREQUENCY (MHz)

205018501650 2250



MAX

2042

A to

c188

P 1dB

(dBm

)

16

18

20

22

24

14

RF FREQUENCY (MHz)

205018501650 2250

VCC = 4.75V, 5.0V, 5.25V






AX20

42A

toc1

89

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

-30

-20

-10

-40

LO FREQUENCY (MHz)

175015501350 1950

TC = +85°C

TC = -40°C

TC = +25°C

-30

-20


MAX

2042

A to

c197

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

-10

-40

LO FREQUENCY (MHz)

175015501350 1950

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c190

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

-30

-20

-10

-40

LO FREQUENCY (MHz)

175015501350 1950



MAX

2042

A to

c191

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

-30

-20

-10

-40

LO FREQUENCY (MHz)

175015501350 1950

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c192

RF-T

O-IF

ISOL

ATIO

N (d

B)

30

40

50

60

20

RF FREQUENCY (MHz)

205018501650 2250

TC = +85°C

TC = -40°CTC = +25°C


AX20

42A

toc1

93

RF-T

O-IF

ISOL

ATIO

N (d

B)

30

40

50

60

20

RF FREQUENCY (MHz)

205018501650 2250

PLO = -6dBm



MAX

2042

A to

c194

RF-T

O-IF

ISOL

ATIO

N (d

B)

30

40

50

60

20

RF FREQUENCY (MHz)

205018501650 2250

VCC = 4.75V, 5.0V, 5.25V

-30

-20


MAX

2042

A to

c195

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

-10

-40

LO FREQUENCY (MHz)

175015501350 1950

TC = -40°C, +25°C, +85°C

-30

-20


MAX

2042

A to

c196

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

-10

-40

LO FREQUENCY (MHz)

175015501350 1950







AX20

42A

toc1

98

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

-40

-30

-20

-10

-50

LO FREQUENCY (MHz)

175015501350 1950

TC = -40°C, +25°C, +85°C


MAX

2042

A to

c199

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

-40

-30

-20

-10

-50

LO FREQUENCY (MHz)

175015501350 1950



MAX

2042

A to

c200

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

-40

-30

-20

-10

-50

LO FREQUENCY (MHz)

175015501350 1950

VCC = 4.75V, 5.0V, 5.25V

215019501750

20

15

10

5


MAX

2042

A to

c201

RF FREQUENCY (MHz)

RF P

ORT

RETU

RN L

OSS

(dB)

0

251550 2350


IF = 300MHz


MAX

2042

A to

c202

IF FREQUENCY (MHz)

IF P

ORT

RETU

RN L

OSS

(dB)

410320230140

25

20

15

10

5

0

3050 500

LO = 1950MHz

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c204


SUPP

LY C

URRE

NT (m

A)

603510-15

130

135

140

145

150

155

125-40 85

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V


MAX

2042

A to

c203

LO FREQUENCY (MHz)

LO R

ETUR

N LO

SS (d

B)

185016501450

40

30

20

10

0

501250 2050

PLO = -3dBm

PLO = 0dBm

PLO = -6dBm

PLO = +3dBm




(Typical Application Circuit with tuning elements outlined in Table 2, VCC = +5.0V, fRF = fLO - fIF, fIF = 300MHz, PIF = 0dBm, PLO = 0dBm, TC = +25NC, unless otherwise noted .)


AX20

42A

toc2

05

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

26002300

6

7

8

9

52000 2900

TC = -40°C

TC = +85°C

TC = +25°C

LO - 2IF RESPONSE vs. RF FREQUENCY

MAX

2042

A to

c212

RF FREQUENCY (MHz)

LO -

2IF

RESP

ONSE

(dBc

)

26002300

55

65

75

85

452000 2900

PLO = -6dBm

PLO = -3dBm

PLO = 0dBm

PLO = +3dBm

PIF = 0dBm


MAX

2042

A to

c206

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

26002300

6

7

8

9

52000 2900

PLO = -6dBm, 3dBm, 0dBm, +3dBm


MAX

2042

A to

c213

RF FREQUENCY (MHz)

LO -

2IF

RESP

ONSE

(dBc

)

26002300

55

65

75

85

452000 2900

PIF = 0dBm

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c207

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

26002300

6

7

8

9

52000 2900

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c208

INPU

T IP

3 (d

Bm)

30

32

34

36

38

40

28

RF FREQUENCY (MHz)

260023002000 2900

TC = -40°C

TC = +85°C

TC = +25°C

PIF = 0dBm/TONE


AX20

42A

toc2

09

INPU

T IP

3 (d

Bm)

30

32

34

36

38

40

28

RF FREQUENCY (MHz)

260023002000 2900

PIF = 0dBm/TONE


PLO = -6dBm


MAX

2042

A to

c210

INPU

T IP

3 (d

Bm)

30

32

34

36

38

40

28

RF FREQUENCY (MHz)

260023002000 2900

PIF = 0dBm/TONE

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V


MAX

2042

A to

c211

RF FREQUENCY (MHz)

LO -

2IF

RESP

ONSE

(dBc

)

26002300

55

65

75

85

452000 2900

TC = -40°C

TC = +85°C

TC = +25°C

PIF = 0dBm





LO + 2IF RESPONSE vs. RF FREQUENCYM

AX20

42A

toc2

14

RF FREQUENCY (MHz)

LO +

2IF

RES

PONS

E (d

Bc)

26002300

55

65

75

85

452000 2900

PIF = 0dBm

TC = -40°C

TC = +85°C

TC = +25°C

LO + 2IF RESPONSE vs. RF FREQUENCY

MAX

2042

A to

c215

RF FREQUENCY (MHz)

LO +

2IF

RES

PONS

E (d

Bc)

26002300

55

65

75

85

452000 2900

PIF = 0dBm

PLO = -6dBm

PLO = -3dBm

PLO = +3dBm

PLO = 0dBm


MAX

2042

A to

c216

RF FREQUENCY (MHz)

LO +

2IF

RES

PONS

E (d

Bc)

26002300

55

65

75

85

452000 2900

PIF = 0dBmVCC = 5.0V

VCC = 5.25V

VCC = 4.75V


MAX

2042

A to

c217

RF FREQUENCY (MHz)

LO -

3IF

RESP

ONSE

(dBc

)

26002300

70

80

90

100

602000 2900

PIF = 0dBm

TC = -40°C, +25°C, +85°C

LO - 3IF RESPONSE vs. RF FREQUENCYM

AX20

42A

toc2

18

RF FREQUENCY (MHz)

LO -

3IF

RESP

ONSE

(dBc

)

26002300

70

80

90

100

602000 2900

PIF = 0dBm



MAX

2042

A to

c219

RF FREQUENCY (MHz)

LO -

3IF

RESP

ONSE

(dBc

)

26002300

70

80

90

100

602000 2900

PIF = 0dBm

VCC = 4.75V, 5.0V, 5.25V


MAX

2042

A to

c220

RF FREQUENCY (MHz)

LO +

3IF

RES

PONS

E (d

Bc)

26002300

70

80

90

100

602000 2900

PIF = 0dBm

TC = -40°C

TC = +85°C

TC = +25°C


MAX

2042

A to

c221

RF FREQUENCY (MHz)

LO +

3IF

RES

PONS

E (d

Bc)

26002300

70

80

90

100

602000 2900

PIF = 0dBm



MAX

2042

A to

c222

RF FREQUENCY (MHz)

LO +

3IF

RES

PONS

E (d

Bc)

26002300

70

80

90

100

602000 2900

PIF = 0dBm

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V





IF LEAKAGE AT RF PORT vs. LO FREQUENCY

MAX

2042

A to

c226

IF L

EAKA

GE A

T RF

POR

T (d

Bm)

-80

-70

-60

-50

-40

-90

LO FREQUENCY (MHz)

290026002300 3200

TC = -40°C

TC = +85°C

TC = +25°C

IF LEAKAGE AT RF PORT vs. LO FREQUENCYM

AX20

42A

toc2

27

IF L

EAKA

GE A

T RF

POR

T (d

Bm)

-80

-70

-60

-50

-40

-90

LO FREQUENCY (MHz)

290026002300 3200

PLO = -6dBm

PLO = +3dBmPLO = -3dBm

PLO = 0dBm


MAX

2042

A to

c228

IF L

EAKA

GE A

T RF

POR

T (d

Bm)

-80

-70

-60

-50

-40

-90

LO FREQUENCY (MHz)

290026002300 3200

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V

LO LEAKAGE AT RF PORT vs. LO FREQUENCYM

AX20

42A

toc2

23

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

-30

-25

-20

-35

LO FREQUENCY (MHz)

290026002300 3200

TC = -40°C, +25°C, +85°C


MAX

2042

A to

c224

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

-30

-25

-20

-35

LO FREQUENCY (MHz)

290026002300 3200



MAX

2042

A to

c225

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

-30

-25

-20

-35

LO FREQUENCY (MHz)

290026002300 3200

VCC = 5.25V

VCC = 5.0V VCC = 4.75V






MAX

2042

A to

c229

RF FREQUENCY (MHz)

RF P

ORT

RETU

RN L

OSS

(dB)

2800260024002200

25

20

15

10

5

0

302000 3000

IF = 300MHz



MAX

2042

A to

c230

IF FREQUENCY (MHz)

IF P

ORT

RETU

RN L

OSS

(dB)

410320230140

25

20

15

10

5

0

3050 500

LO = 2900MHz

VCC = 4.75V, 5.0V, 5.25V

40

30

20

10


MAX

2042

A to

c231

LO FREQUENCY (MHz)

LO R

ETUR

N LO

SS (d

B)

0

501000 40003400280022001600

PLO = 0dBm

PLO = -3dBm



MAX

2042

A to

c232


SUPP

LY C

URRE

NT (m

A)

603510-15

130

135

140

145

150

155

125-40 85

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V






AX20

42A

toc2

33

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

26002300

6

7

8

9

52000 2900

TC = -40°C

TC = +85°C

TC = +25°C


MAX

2042

A to

c240

RF FREQUENCY (MHz)

LO -

2IF

RESP

ONSE

(dBc

)

26002300

55

65

75

85

452000 2900

PLO = -6dBm

PLO = -3dBm

PLO = 0dBm PLO = +3dBm

PIF = 0dBm


MAX

2042

A to

c234

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

26002300

6

7

8

9

52000 2900

PLO = -6dBm, 3dBm, 0dBm, +3dBm


MAX

2042

A to

c241

RF FREQUENCY (MHz)

LO -

2IF

RESP

ONSE

(dBc

)

26002300

55

65

75

85

452000 2900

PIF = 0dBm

VCC = 3.0V, 3.3V, 3.6V


MAX

2042

A to

c235

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

26002300

6

7

8

9

52000 2900

VCC = 3.0V, 3.3V, 3.6V

27

29

31

33


MAX

2042

A to

c236

INPU

T IP

3 (d

Bm)

35

25

RF FREQUENCY (MHz)

260023002000 2900

TC = -40°C

TC = +85°C

TC = +25°C

PIF = 0dBm/TONE

27

29

31

33


AX20

42A

toc2

37

INPU

T IP

3 (d

Bm)

35

25

RF FREQUENCY (MHz)

260023002000 2900

PIF = 0dBm/TONE


29

31

33


MAX

2042

A to

c238

INPU

T IP

3 (d

Bm)

35

25

RF FREQUENCY (MHz)

260023002000 2900

PIF = 0dBm/TONE

VCC = 3.0V

VCC = 3.6V

VCC = 3.3V


MAX

2042

A to

c239

RF FREQUENCY (MHz)

LO -

2IF

RESP

ONSE

(dBc

)

26002300

55

65

75

85

452000 2900

TC = -40°C

TC = +85°C

TC = +25°C

PIF = 0dBm





LO + 2IF RESPONSE vs. RF FREQUENCYM

AX20

42A

toc2

42

RF FREQUENCY (MHz)

LO +

2IF

RES

PONS

E (d

Bc)

26002300

55

65

75

85

452000 2900

PIF = 0dBm

TC = -40°C

TC = +85°C

TC = +25°C


MAX

2042

A to

c243

RF FREQUENCY (MHz)

LO +

2IF

RES

PONS

E (d

Bc)

26002300

55

65

75

85

452000 2900

PIF = 0dBm

PLO = -6dBm

PLO = -3dBm

PLO = +3dBmPLO = 0dBm


MAX

2042

A to

c244

RF FREQUENCY (MHz)

LO +

2IF

RES

PONS

E (d

Bc)

26002300

55

65

75

85

452000 2900

PIF = 0dBm

VCC = 3.3V

VCC = 3.0V

VCC = 3.6V


MAX

2042

A to

c245

RF FREQUENCY (MHz)

LO -

3IF

RESP

ONSE

(dBc

)

26002300

60

70

80

90

502000 2900

PIF = 0dBm

TC = -40°C, +25°C, +85°C

LO - 3IF RESPONSE vs. RF FREQUENCYM

AX20

42A

toc2

46

RF FREQUENCY (MHz)

LO -

3IF

RESP

ONSE

(dBc

)

260023002000 2900

PIF = 0dBm


70

80

90

50


MAX

2042

A to

c247

RF FREQUENCY (MHz)

LO -

3IF

RESP

ONSE

(dBc

)

260023002000 2900

PIF = 0dBm

60

70

80

90

50

VCC = 3.6V

VCC = 3.3V

VCC = 3.0V


MAX

2042

A to

c248

RF FREQUENCY (MHz)

LO +

3IF

RES

PONS

E (d

Bc)

26002300

70

80

90

100

602000 2900

PIF = 0dBm

TC = -40°C

TC = +85°C

TC = +25°C


MAX

2042

A to

c249

RF FREQUENCY (MHz)

LO +

3IF

RES

PONS

E (d

Bc)

26002300

70

80

90

100

602000 2900

PIF = 0dBm



MAX

2042

A to

c250

RF FREQUENCY (MHz)

LO +

3IF

RES

PONS

E (d

Bc)

26002300

70

80

90

100

602000 2900

PIF = 0dBm

VCC = 3.6V

VCC = 3.3V

VCC = 3.0V






MAX

2042

A to

c254

IF L

EAKA

GE A

T RF

POR

T (d

Bm)

-80

-70

-60

-50

-40

-90

LO FREQUENCY (MHz)

290026002300 3200

TC = -40°C

TC = +85°C

TC = +25°C

IF LEAKAGE AT RF PORT vs. LO FREQUENCYM

AX20

42A

toc2

55

IF L

EAKA

GE A

T RF

POR

T (d

Bm)

-80

-70

-60

-50

-40

-90

LO FREQUENCY (MHz)

290026002300 3200

PLO = -6dBm



MAX

2042

A to

c256

IF L

EAKA

GE A

T RF

POR

T (d

Bm)

-80

-70

-60

-50

-40

-90

LO FREQUENCY (MHz)

290026002300 3200

VCC = 3.0V, 3.3V, 3.6V

LO LEAKAGE AT RF PORT vs. LO FREQUENCYM

AX20

42A

toc2

51

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

-35

-30

-25

-40

LO FREQUENCY (MHz)

290026002300 3200

TC = -40°C, +25°C, +85°C


MAX

2042

A to

c252

LO FREQUENCY (MHz)

290026002300 3200

PLO = -6dBm, -3dBm, 0dBm, +3dBm-35

-30

-25

-40

LO L

EAKA

GE A

T RF

POR

T (d

Bm)


MAX

2042

A to

c253

LO FREQUENCY (MHz)

290026002300 3200

VCC = 3.6V

VCC = 3.3V

VCC = 3.0V

-35

-30

-25

-40

LO L

EAKA

GE A

T RF

POR

T (d

Bm)






MAX

2042

A to

c257

RF FREQUENCY (MHz)

RF P

ORT

RETU

RN L

OSS

(dB)

2800260024002200

25

20

15

10

5

0

302000 3000

IF = 300MHz



MAX

2042

A to

c258

IF FREQUENCY (MHz)

IF P

ORT

RETU

RN L

OSS

(dB)

410320230140

25

20

15

10

5

0

3050 500

LO = 2900MHz

VCC = 3.0V, 3.3V, 3.6V

40

30

20

10


MAX

2042

A to

c259

LO FREQUENCY (MHz)

LO R

ETUR

N LO

SS (d

B)

0

501000 40003400280022001600

PLO = +3dBm

PLO = -6dBm PLO = -3dBm

PLO = 0dBm


MAX

2042

A to

c260


SUPP

LY C

URRE

NT (m

A)

603510-15

115

120

125

130

135

140

110-40 85

VCC = 3.6V

VCC = 3.3V

VCC = 3.0V




引脚说明

引脚配置

引脚名称功能

1, 6, 8,14 VCC 电源，使用0.01μF电容旁路至GND，电容应尽可能靠近引脚放置。

2 RF单端50Ω RF输入端。该端口由内部匹配，并通过非平衡变压器直流短路到GND，必要时连接一个隔直流电容，该电容也用于RF匹配调谐。

3, 4, 5, 10, 12, 13, 17

GND 地，内部连接至裸焊盘，将所有接地引脚与裸焊盘(EP)连接在一起。

7 LOBIASLO放大器偏置控制。输出偏置电阻用于LO缓冲器。在LOBIAS与地之间连接一个698Ω ±1%电阻(标称偏置条件)。流过该电阻的最大电流为3mA。

9, 15 GND 地。内部没有连接，将这些引脚接地或悬空。

11 LO 本振输入。该输入端在内部匹配至50Ω，需要连接输入隔直流电容。电容也用于LO匹配调谐。

16, 20 GND 地，将所有接地引脚与裸焊盘(EP)连接在一起。

18, 19 IF-, IF+ 混频器差分IF输出/输入端。

— EP裸焊盘。内部连接至GND，使用多个接地过孔将该裸焊盘焊接到PCB焊盘，为器件与PCB地层之间提供良好的散热通道。多个接地过孔还有助于改善RF性能(参见布局考虑部分)。

MAX2042A

TQFN5mm x 5mm

TOP VIEW

19

20+

18

17

7

6

8

RF

GND

GND

9

V CC

V CC

GND

LOGND

1 2

IF-

4 5

15 14 12 11

IF+

GND

GND

VCC

LOBIAS

VCCGN

DGN

D

3

13

GND

16 10 GNDGND



上/下变频混频器，带有LO缓冲器功能框图

详细说明

在2300MHz至2900MHz频段用作高端LO注入混频器时，MAX2042A可提供+33dBm的IIP3，变换损耗和噪声系数典型值仅为7.2dB和7.25dB。集成非平衡变压器和匹配电路允许单端连接至RF端口和LO端口(50Ω匹配)。集成LO缓冲器可以为混频器核提供较强的驱动能力，将该器件输入端所需的LO驱动减小到-6dBm至+3dBm。IF端口配合差分输出端，有效改善了2LO - 2RF性能。

该器件可在较宽的频率范围内保证性能，适用于GSM/E D G E、C D M A、T D - S C D M A、W C D M A、L T E、TD-LTE、WiMAX和MMDS基站。器件工作在1600MHz至3900MHz RF输入范围、1300MHz至4000MHz LO范围以及50MHz至500MHz IF范围。外部IF元件用于设置更低的工作频率范围(详细信息请参见典型工作特性)，器件还可以工作在上述频率范围以外(详细信息请参见典型工作特性)。

RF 输入和非平衡变压器配合隔直流电容使用时，IC的RF输入提供50Ω匹配。由于输入端在内部通过片上非平衡变压器直流短路到地，所以必须使用隔直流电容。使用8.2pF隔直流电容时，在整个2300MHz至2900MHz RF频率范围内，RF端口的输入回波损耗典型值为17dB。将隔直流电容更换成1.5pF，工作在3000MHz至3900MHz频率范围可以得到14dB的回波损耗。

工作在1700MHz至2200MHz频率范围时，应提供一个12nH并联电感，连接到1.8pF隔直流电容，此时的回波损耗为12dB。详细信息请参考典型应用电路和表1。

LO 输入、缓冲器和非平衡变压器器件利用1300MHz至4000MHz较宽频率的LO驱动电路，可支持低端或高端LO注入架构，适用于所有1.7GHz至3.5GHz接收及发射应用。LO输入在内部匹配为50Ω，只需一个2pF隔直电容。两级内部LO缓冲器允许-6dBm至+3dBm的LO输入功率范围。片上低损耗非平衡变压器和LO缓冲器相配合，驱动双平衡混频器。LO输入端与IF输出端之间的所有接口和匹配元件均已集成在芯片内部。

高线性度混频器该器件的核心是一个双平衡、高性能无源混频器。片上LO缓冲器具有较大的LO摆幅，可提供优异的线性指标。IIP3、2LO - 2RF抑制和噪声系数的典型值分别为33dBm、72dBc和7.25dB。

差分 IF 端口该器件具有50MHz至500MHz的IF频率范围，其低端频率取决于外部IF元件的频率响应。

器件的差分IF端口有助于增强2LO - 2RF性能，用户可以在混频器的IF端口使用差分IF放大器或SAW滤波器，但IF+/IF-端口需要隔直流，以防止外部直流进入混频器的IF端口。实际应用中，可以采用外部MABACT0069 1:1变压器，将50Ω差分IF接口转换成50Ω单端接口。该变压器还为芯片内部电路提供一个IF引脚的地返回端。如果在IF引脚不能获得地返回端，则通过片外接地电阻或大的电感值提供返回通道。此时，可以在每个IF引脚对地连接一只1kΩ电阻。另外，IF接口可直接连接单端、交流耦合信号输入或输出IF+引脚，只需把IF-接地并在IF+与地之间连接一个1kΩ电阻。

RF

IF

RF BALUN

LO BALUNLO DRIVER

LO

MAX2042A



上/下变频混频器，带有LO缓冲器应用信息

输入和输出匹配配合串联隔直流电容使用时，RF输入提供50Ω匹配。工作在2000MHz至2900MHz RF频率范围时，连接一个8.2pF隔直流电容；工作在3000MHz至3900MHz频率范围时，连接一个1.5pF隔直电容；RF频率处于1650MHz至2250MHz频率范围时，则采用：C1 = 1.8pF、L1 = 12nH。LO输入内部匹配在50Ω，使用2pF隔直流电容可覆盖1300MHz至4000MHz工作频率范围。IF输出阻抗为50Ω (差分)。为方便评估，通过外部低损耗1:1 (阻抗比)非平衡变压器将该阻抗转换成50Ω单端输出(参见典型应用电路)。

降低功耗模式该器件包含一个引脚(LOBIAS)，允许通过外部电阻设置内部偏置电流。电阻的标称值如表1和表2所示。增大电阻值可降低功耗，但代价是性能有所下降。如果没有±1%精度的电阻，可以采用±5%的电阻替代。

如果采用3.3V电源为混频器供电，可显著降低功耗，整体功耗下降42%，请参考3.3V Supply AC Electrical Characteristics表和典型工作特性中与3.3V供电相关的特性曲线，以折中考虑功耗和性能。

布局考虑合理的PCB设计是任何RF/微波电路的一个重要部分。RF信号线应尽可能短，以降低损耗、辐射和电感。为获得最佳性能，接地引脚须直接与封装底部的裸焊盘连接。PCB上的裸焊盘必须连接至PCB地层。建议采用多个过孔将该焊盘连接至地层。这种方法能为器件提供一个良好的RF/散热路径。将器件封装底部的裸焊盘焊接至PCB。

电源旁路合理的电源旁路对高频电路的稳定性至关重要。如典型应用电路所示，对各VCC引脚使用电容旁路，元件值参见表1。

裸焊盘对RF性能/散热的影响该器件采用20引脚、TQFN封装，其裸焊盘(EP)提供了一个与管芯之间的低热阻通路。安装该器件的PCB与EP之间保持良好的热传递通道非常重要。此外，EP应通过一个低电感路径接地。EP必须直接或通过一系列电镀过孔焊接至PCB的地层。



上/下变频混频器，带有LO缓冲器表1. 元件值—下变频模式

表2. 元件值—上变频模式

DESIGNATION QTY DESCRIPTION COMPONENT SUPPLIER

C1 1

8 .2pF microwave capacitor (0402); use for 2000MHz to 2900MHz RF frequencies

Murata Electronics North America, Inc .





C2, C6, C8, C11 4 0 .01FF microwave capacitors (0402) Murata Electronics North America, Inc .

C3, C9 0 Not installed, capacitors —

C5 0 Not installed, capacitor —

C10 1 2pF microwave capacitor (0402) Murata Electronics North America, Inc .

L1 112nH microwave inductor (0402); use for 1600MHz to 2000MHz RF frequencies (this inductor is not used for other RF bands noted above)

TOKO America, Inc .

R1 1 698I Q1% resistor (0402) —

T1 1 1:1 IF balun MABACT0069 M/A-Com, Inc .

U1 1 MAX2042A IC (20 TQFN) Maxim Integrated Products, Inc .

DESIGNATION QTY DESCRIPTION COMPONENT SUPPLIER

C1 1







C2, C6, C8, C11 4 0 .01FF microwave capacitors (0402) Murata Electronics North America, Inc .

C3, C9 0 Not installed, capacitors —

C5 0 Not installed, capacitor —

C10 1 2pF microwave capacitor (0402) Murata Electronics North America, Inc .

L1 112nH microwave inductor (0402); use for 1600MHz to 2000MHz RF frequencies (this inductor is not used for other RF bands noted above)

TOKO America, Inc .

R1 1 698I Q1% resistor (0402) —

T1 1 1:1 IF balun MABACT0069 M/A-Com, Inc .

U1 1 MAX2042A IC (20 TQFN) Maxim Integrated Products, Inc .



上/下变频混频器，带有LO缓冲器典型应用电路

NOTES:PINS 3, 4, 5, 10, 12, 13, AND 17 ARE ALL INTERNALLYCONNECTED TO THE EXPOSED GROUND PAD.THESE PINS CAN BE EXTERNALLY GROUNDED IN AN ATTEMPTTO IMPROVE ISOLATION.

PINS 9 AND 15 HAVE NO INTERNAL CONNECTION BUT CAN BEEXTERNALLY GROUNDED IN AN ATTEMPT TO IMPROVE ISOLATION.

7

6

8

RF

9

VCC

+5.0V

+5.0V

1 2 4 5

15 14 12 11

VCC

VCC

GND

GND

GND

IF-

IF+

GND

5

3

IF

T1

GND

GND GND GND

3

13

10

19

20

18N.C.

17

16

+5.0V

LO

R1

LOINPUT

C6

RF

1:1

C5

C2 C1

L1

C3

+5.0V

C8 C9

C10C11

EP

LOBIAS

GNDGNDGND VCC

MAX2042A

4

12



上/下变频混频器，带有LO缓冲器封装信息

如需最近的封装外形信息和焊盘布局(占位面积)，请查询china.maxim-ic.com/packages。请注意，封装编码中的“+”、“#”或“-”仅表示RoHS状态。封装图中可能包含不同的尾缀字符，但封装图只与封装有关，与RoHS状态无关。

芯片信息

PROCESS: SiGe BiCMOS

定购信息

+表示无铅(Pb)/符合RoHS标准的封装。*EP = 裸焊盘。T = 卷带包装。

封装类型封装编码外形编号焊盘布局编号

20 TQFN-EP T2055+3 21-0140 90-0008

PART TEMP RANGE PIN-PACKAGE

MAX2042AETP+ -40NC to +85NC 20 TQFN-EP*

MAX2042AETP+T -40NC to +85NC 20 TQFN-EP*

http://china.maxim-ic.com/packages

http://china.maxim-ic.com/packages

http://pdfserv.maxim-ic.com/package_dwgs/21-0140.PDF

http://pdfserv.maxim-ic.com/land_patterns/90-0008.PDF

MAX2042A

Maxim不对Maxim产品以外的任何电路使用负责，也不提供其专利许可。Maxim保留在任何时间、没有任何通报的前提下修改产品资料和规格的权利。电气特性表中列出的参数值(最小值和最大值)均经过设计验证，数据资料其它章节引用的参数值供设计人员参考。

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 52

© 2011 Maxim Integrated Products Maxim是Maxim Integrated Products，Inc.的注册商标。

SiGe、高线性度、1600MHz至3900MHz上/下变频混频器，带有LO缓冲器

修订历史

修订号修订日期说明修改页

0 6/11 最初版本。 —

Maxim北京办事处北京8328信箱邮政编码100083免费电话：800 810 0310电话：010-6211 5199传真：010-6211 5299

max2042a sige、高线性度、1600mhz至3900mhz 上/下变频混 …

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