1. 1 15:12

2. 2 15:12 3. 3 15:12 4. (Analog Real Time) 4 15:12 5. (Digital Storage Oscilloscope) , , 5 15:12 6. , , 6 15:12 7. DPO uP A/DDPX7 15:12 8. (Bandwidth)(Linear Range) (Overdrive Recovery)( Sampling Rate) (Channel)(Channel Deskew) (Memory Depth)v.s. (Time Base) v.s. (Display Mode) DPO (DPO Display) (Trigger)8 15:12 9. (Bandwidth)0.707 -3dBxTDS 784Dppp0.707V, fBW VfBW : -3dB( )20log0.707 = -3dB9 15:12 10. v.s. 0.10.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 100 } 3%97.5 95 92.5 90 (%) 87.5 85 1082.5 80 . 77.53% 75 72.5,70.7 -3dB3 . 30% 3dB .10 15:12 11. v.s. ()(BW)0.35/ (tr) BW x tr = 0.35 tr BW0.4 0.9 V (tr)V 0.1 VBW = 0.35/ tr11 15:12 12. v.s.--(Transition-time) () ( X= 0.35) ( ) = ( ) +(2 ) 2 350MHz 1ns (0.35/350M)1ns( ): = (1ns )2 + (1ns )2 = 1 . 41 ns 1GHz 350ps (0.35/1G)( 3 ) : = (1ns )2 + (350ps ) = 1 . 06 ns212 15:12 13. vs. tr / tr 1:141.4%3:15.4%5:12.0% 10:10.5%13 15:12 14. v.s.= ( ) +(2) +(2 ) 214 15:12 15. 2 22 1 1 1 1 = + + 15 15:12 16. Example for Scope SelectionCalculatedMeasurement Measurement TypicalSignal Bandwidth Bandwidth Logic Signal Bandwidth for 3% For 1.5% Family Rise Times= 0.35* RolloffRollofftrise ErrorError TTL 5 ns 70 MHz231 MHz350 MHzCMOS1.5 ns230 MHz 767 MHz1.15 GHz ECL500 ps700 MHz2.33 GHz 3.5 GHz GaAs 200 ps 1.75 GHz 5.8 GHz8.75 GHz trise (displayed) = (trise (scope) )2 + (trise (probe) )2 + (trise (source) )216 15:12 17. (Bandwidth) (Linear Range)(Overdrive Recovery) ( Sampling Rate) (Channel)(Channel Deskew) (Memory Depth) v.s.(Time Base) v.s. (Display Mode) DPO (DPO Display) (Trigger) 17 15:12 18. (Linear Range)(Overdrive Recovery) x p TDS 784D p p( )18 15:12 19. 19 15:12 20. 20 15:12 21. 21 15:12 22. (Bandwidth) (Linear Range)(Overdrive Recovery) ( Sampling Rate) (Channel)(Channel Deskew) (Memory Depth) v.s.(Time Base) v.s. (Display Mode) DPO (DPO Display) (Trigger) 22 15:12 23. (Sampling Rate) . * . Analog Waveform Sample ClockDigital Data *(Real Time) *(Equivalent Time) -(Sequential) -(Random)23 15:12 24. ... Nyqeist 2 . SinX/X (Interpolation) 2.5 .(Single shot).24 15:12 25. . * . * . * . *. - (Sequential Equivalent Time Sampling). - (Random Equivalent Time Sampling).25 15:12 26. 1.T1 T2T3S1S2S3 TN S1SN26 15:12 27. 2. T1 T2 T3 S1S2 S3 S4 S5S6 S7 S8 S9TN/ S(T1)S(TN)27 15:12 28. f g(t), 2f ,n= n g(t ) = g() sin c ( 2 ft n ) n = 2f g(n/2f) sinc(2ft - n) (Interpolation Function) (Interpolation Formula) sinc ,2f, f g(t) , 2f ( ) Nyquist Sinc(2ft - n)28 15:12 29. 2f ( 2.5f), f Aliasing29 15:12 30. : BW=0.35/tr 90% 10%30 15:12 31. (glitch) 4 4( ) 31 15:12 32. (Bandwidth) (Linear Range)(Overdrive Recovery) ( Sampling Rate) (Channel)(Channel Deskew) (Memory Depth) v.s.(Time Base) v.s. (Display Mode) DPO (DPO Display) (Trigger) 32 15:12 33. Use A Fast Signal Generator To Fine Tune The Alignment Of The Measurement System33 15:12 34. TDS5000B TDS7000B ( TDS5104B) - TDS5104B 5GS/s1 Channel. - 2 Channel : 2.5GS/s - 3~4 Channel : 1.25GS/s TDS6000BTDS3000B ( TDS6804B ) - TDS6804B1~4 Channel20GS/s.34 15:12 35. (Bandwidth) (Linear Range)(Overdrive Recovery) ( Sampling Rate) (Channel)(Channel Deskew) (Memory Depth) v.s.(Time Base) v.s. (Display Mode) DPO (DPO Display) (Trigger) 35 15:12 36. (Memory Depth) DurationRecord Length Sample Rate Resolution20 us 500 Samples25 MS/s40 ns/pt200 us5000 Samples 25 MS/s 40 ns/pt36 15:12 37. (Bandwidth) (Linear Range)(Overdrive Recovery) ( Sampling Rate) (Channel)(Channel Deskew) (Memory Depth) v.s.(Time Base) v.s. (Display Mode) DPO (DPO Display) (Trigger) 37 15:12 38. v.s. (Time Base) v.s. 38 15:12 39. v.s.(Time Base) v.s. Duration Record Length Sample Rate Resolution 20 us500 samples 25 MS/s40 ns/pt 20 us5000 samples250 MS/s 4 ns/pt39 15:12 40. v.s.(Time Base) v.s. Duration = 20 us Duration = 20 us Resolution = 8ns Resolution = 800ps Record Length= Record Length= 2500pts25000pts4015:12 41. (Bandwidth) (Linear Range)(Overdrive Recovery) ( Sampling Rate) (Channel)(Channel Deskew) (Memory Depth) v.s.(Time Base) v.s. (Display Mode) DPO (DPO Display) (Trigger) 41 15:12 42. Fit to Screen500 Points [ T ]42 15:12 43. Fit to Screen500 Points | T [ ] |43 15:12 44. 9 8 7 6 5 4 3 2 1 A B CD E F 99884 samples77663 samples5544332 samples22 111 sampleAB CDE F AB CDE FDecimation Intensity Shaded44 15:12 45. vco2 MHz 200 kHz45 15:12 46. (Bandwidth) (Linear Range)(Overdrive Recovery) ( Sampling Rate) (Channel)(Channel Deskew) (Memory Depth) v.s.(Time Base) v.s. (Display Mode) DPO (DPO Display) (Trigger) 46 15:12 47. DPO Better Than Analog Better Than Digital And More47 15:12 48. DPO DPO 3D 3D DPO48 15:12 49. DPO DPO DPX DPX 1,000 YT, XY XYZ49 15:12 50. DPO 50 15:12 51. DPO (Persistance) 51 15:12 52. DPO 52 15:12 53. (Bandwidth) (Linear Range)(Overdrive Recovery) ( Sampling Rate) (Channel)(Channel Deskew) (Memory Depth) v.s.(Time Base) v.s. (Display Mode) DPO (DPO Display) (Trigger) 53 15:12 54. (Trigger)54 15:12 55. (Edge) (Pulse) (width),(glitch),(runt), (Transition(slew rate)), (timeout),(Window) (Logic) (AND, OR, NAND, NOR) / (setup/hold), (Pattern), (State) (TV / Video) (option) (Communication) (option) ITU-T, TI102, SDH/SONET, Fiber Channel, Ethernet, PCI-E, SATA, XAUI55 15:12 56. T1T2 T1T2 -- (Outside)56 15:12 57. T1 TT 200,000> 200,000 > 400,000 > 400,000> 400,000 > 400,000 Capture Ratewfms/sec wfms/secwfms/secwfms/sec wfms/secwfms/sec Record Length16 MB16 MB 64 MB64 MB64 MB64 MB Fidelity Analysis Usability7215:12 73. Tektronix Performance Oscilloscopes CSA7000/B Series DPOCSA7154 CSA7404BBandwidth 1.5 GHz4 GHzRise Time240ps/100ps/72ps10%-90%/20%-80%Sample Rate 20 GS/s20 GS/sWaveform> 400,000 > 400,000Capture Ratewfms/secwfms/secRecord Length32 MB 64 MB7315:12 74. TDS Ultra-Performance Portfolio 74 15:12 75. TDS Ultra-Performance Portfolio TDS6124C TDS6154C TDS7704B Bandwidth 12 GHz 15 GHz - DSP7 GHz Sample Rate 40 GS/s 40 GS/s20 GS/s On 1 Channel Sample Rate On 4 Channel20 GS/s 20 GS/s 5 GS/s Record Length4MB / 2 MB 4MB / 2 MB4MB / 1 MB Std 1 / 4 Ch 64MB / 32 MB 64MB / 32 MB 64MB / 16MB Max 1 / 4 Ch DPO No NoYes PinpointYesYes Yes Triggering75 15:12 76. New Pinpoint Trigger SystemFastest, most complete Trigger System in the industrySiGe Technology New! Full analog bandwidth in all trigger modesNew triggering features Window Triggering Sequence Reset Triggering Independent Trigger Level A Event, B Event, and each Channel Logic Qualification on all Trigger Types New! B Trigger offers complete suite of Trigger TypesBenefits Another level of discovery for device & system debug Qualify captured data for further analysis76 15:12 77. Pinpoint Triggering Performance Trigger Jitter