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DS125MB203SQ Datasheet(PDF) 9 Page - Texas Instruments |
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DS125MB203SQ Datasheet(HTML) 9 Page - Texas Instruments |
9 / 54 page 9 DS125MB203 www.ti.com SNLS432C – OCTOBER 2012 – REVISED DECEMBER 2015 Product Folder Links: DS125MB203 Submit Documentation Feedback Copyright © 2012–2015, Texas Instruments Incorporated Electrical Characteristics (continued) See (1)(2). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT (4) Propagation Delay measurements will change slightly based on the level of EQ selected. EQ = 00 will result in the shortest propagation delays. Vtx-de-ratio_6 TX de-emphasis ratio VOD = 1.0 Vp-p, DEM_x[1:0] = F, 0 –6 dB tTX-DJ Deterministic jitter VID = 800 mV, PRBS15 pattern, 8.0 0.05 Gbps, VOD = 1.0 V, UIpp EQ = 0x00, DE = 0 dB (no input or output trace loss) 0.05 UIpp tTX-RJ Random jitter VID = 800 mV, 0101 pattern, 8.0 Gbps, 0.3 VOD = 1.0 V, ps RMS EQ = 0x00, DE = 0 dB, (no input or output trace loss) 0.3 ps RMS TTX-RISE-FALL TX rise/fall time 20% to 80% of differential output voltage 35 45 ps TRF-MISMATCH TX rise/fall mismatch 20% to 80% of differential output voltage 0.01 0.1 UI RLTX-DIFF TX Differential return loss 0.05 - 7.5 GHz –15 dB 7.5 - 15 GHz –5 dB RLTX-CM TX common-mode return loss 0.05 - 5 GHz –10 dB ZTX-DIFF-DC DC differential TX impedance 100 Ω VTX-CM-AC-PP TX AC common-mode voltage VOD = 1.0 Vp-p, DEM_x[1:0] = R, F 100 mVpp ITX-SHORT TX short circuit current limit Total current the transmitter can supply when shorted to VDD or GND 20 mA VTX-CM-DC- ACTIVE-IDLE-DELTA Absolute delta of DC common-mode voltage during L0 and electrical idle 100 mV VTX-CM-DC-LINE- DELTA Absolute delta of DC common-mode voltage between TX+ and TX– 25 mV TTX-IDLE-DATA Max time to transition to differential DATA signal after IDLE VID = 1 Vp-p, 8 Gbps 3.5 ns TTX-DATA-IDLE Max time to transition to IDLE after differential DATA signal VID = 1 Vp-p, 8 Gbps 6.2 ns TPLHD/PHLD High-to-low and low- to-high differential propagation delay EQ = 00(4) 200 ps TLSK Lane-to-lane skew T = 25°C, VDD = 2.5 V 25 ps TPPSK Part-to-part propagation delay skew T = 25°C, VDD = 2.5 V 40 ps TMUX-SWITCH Mux/switch time 100 ns EQUALIZATION DJE1 Residual deterministic jitter at 12 Gbps 30-inch 4-mils FR4, VID = 0.6 Vp-p, PRBS15, EQ = 07'h, DEM = 0 dB 0.18 UI DJE2 Residual deterministic jitter at 8 Gbps 30-inch 4-mils FR4, VID = 0.6 Vp-p, PRBS15, EQ = 07'h, DEM = 0 dB 0.11 UI DJE3 Residual deterministic jitter at 5 Gbps 30-inch 4-mils FR4, VID = 0.6 Vp-p, PRBS15, EQ = 07'h, DEM = 0 dB 0.07 UI DJE4 Residual deterministic jitter at 12 Gbps 5 meters 30 awg cable, VID = 0.6 Vp-p, PRBS15, EQ = 07'h, DEM = 0 dB 0.25 UI |
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