TDR/TDT Agilent Infiniium DCA 86100B Agilent 54754A TDR/TDT 1 1 2 2 3 3 4 TDR 6 8 TDR 11 5 23
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1 Agilent 54754A TDR/TDT TDR/TDT Agilent 86100B TDR/TDT Agilent 54754A SMA 1 Agilent 8120-4948 SMA( ) 50 1 Agilent 1250-2151 SMA( ) 1 Agilent 1250-2152 SMA(m) 1 Agilent 1250-2153 54754A 1 Agilent 54754-66503 2 Agilent 54754-66503 - 1 -
2 Agilent 54754A DUT - 2 -
3 5 4 2 3 6 7 1 1 5 Auto Scale 2 default setup 6 3 TDR/TDT 7 4 1 60 Default setup 2 Default setup TDR/TDT 3-3 -
TDR DUT 86100B 54754A TDR/TDT 1. Calibrate All Calibrations 2. All Calibrations Modules Calibrate Left Module All Calibrations 3. Module Calibration Disconnect everything from the left module Continue Module Calibration - 4 -
4. Module Calibration Connect 50ohm load Channel1 50 1 Continue 50!! p.2 2 Module Calibration 5. 2 4 6. Disconnect everything from the left module 50 Continue 7. Calibration Completed - 5 -
4 TDR 54754A 54754-66503 TDR TDR psec E i E r T T E i Z L E r TDR V i V r T V i V r - 6 -
Z L Z 0 1+ ρ Z L = Z 1 ρ ρ V ρ = V r i 0 Z 0 Z L D T v c T = 2 D v = v v c ε r ε r - 7 -
V r = 0 V r = 0 = 0 Z L = Z 0 V i Z L Z L V r = -V i V r = -V i = -1 Z L = 0 V i Z L V r = V i = 1 Z L = V r =V i V i Z L V r = V i / 3 = 1/3 Z L = 2Z 0 V r = V i /3 V i Z L 2Z L - 8 -
V r = -V i / 3 = -1/3 Z L = Z 0 / 2 V i V r = -V i /3 Z L Z L /2 RL L R RC - 9 -
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TDR TDR DUT 0. p.3 3 0-1 TDR 0-2 4 Time/Delay - 11 -
Time/Delay Rise Time 40psec 1. SMA!! p.2 2-12 -
1-1 1-2 Auto Scale 5 Auto Scale 1-3 0-2 55psec SMA 55psec - 13 -
2.!! p.2 2 Agilent 54754A 3.5mm SMA 3. Auto Scale - 14 -
4. DUT 4-1 Time/Delay Scale/Offset 4-2 Setup > Acquisition Manual 2 n - 15 -
5. 6. DUT 50 TDR DUT DUT DUT 50-16 -
6-0 6-7 10psec 6-1 Normalize 6-2 Normalize Response 1 p.4 3 6-3 Single-Ended TDR Normalization Continue - 17 -
6-4 50 Continue 6-5 Normalization completed. Response1 turned on. 50 6-6!! p.2 2-18 -
6-7 TDR/TDT Mode Response Response Rise Time Rise Time 10psec - 19 -
100psec Averaging Setup > Acquisition Averaging Number of Averages Averaging Averaging 6-8 6-20 -
6-9 7 50 75 30 Setup & Info TDR/TDT Marker Units Volts Ohms %Reflect 200mV Seconds Meters T = 2 D v v v c = v c ε r ε r - 21 -
6-10 LC 5nH LC TDR - 22 -
5 4 a. d. a. File > Save > Screen Image *.bmp, *,pcx, *.eps, *.ps, *.gif, *.tif, *.jpg Invert Waveform Background Color b. File > Save > Instrument Setup - 23 -
c. File > Save > Waveform Response Waveform files (Internal) *.wfm Waveform files (Verbose) *.txt Y Waveform files (Y Values) *.txt Waveform files (Y Values) Waveform files (Verbose) Waveform files (Y Values) txt Verbose Y Values d. File > Save > TDR/TDT Normalization DUT - 24 -
File > Save >Waveform Response c. *.wfm,*.txt File > Open Memory1 4 File > Waveform Memory Waveform Memory Setup - 25 -
Waveform Memory Setup Load From File Waveform Memory Setup Memory1 4 Load from Waveform - 26 -