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Si8642BA-C-IU Datasheet(PDF) 11 Page - STMicroelectronics |
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Si8642BA-C-IU Datasheet(HTML) 11 Page - STMicroelectronics |
11 / 44 page Rev. 1.6 11 Si8640/41/42/45 Timing Characteristics Si864xBx, Ex Maximum Data Rate 0 — 150 Mbps Minimum Pulse Width — — 5.0 ns Propagation Delay tPHL, tPLH See Figure 2 5.0 8.0 13 ns Pulse Width Distortion |tPLH – tPHL| PWD See Figure 2 — 0.2 4.5 ns Propagation Delay Skew2 tPSK(P-P) —2.0 4.5 ns Channel-Channel Skew tPSK —0.4 2.5 ns All Models Output Rise Time tr CL =15pF See Figure 2 — 2.5 4.0 ns Output Fall Time tf CL =15pF See Figure 2 — 2.5 4.0 ns Peak eye diagram jitter tJIT(PK) See Figure 8 — 350 — ps Common Mode Transient Immunity CMTI VI =VDD or 0 V VCM =1500V (see Figure 3) 35 50 — kV/µs Enable to Data Valid ten1 See Figure 1 — 6.0 11 ns Enable to Data Tri-State ten2 See Figure 1 — 8.0 12 ns Startup Time3 tSU —15 40 µs Table 3. Electrical Characteristics (Continued) (VDD1 = 3.3 V ±10%, VDD2 = 3.3 V ±10%, TA = –40 to 125 °C) Parameter Symbol Test Condition Min Typ Max Unit Notes: 1. The nominal output impedance of an isolator driver channel is approximately 50 , ±40%, which is a combination of the value of the on-chip series termination resistor and channel resistance of the output driver FET. When driving loads where transmission line effects will be a factor, output pins should be appropriately terminated with controlled impedance PCB traces. 2. tPSK(P-P) is the magnitude of the difference in propagation delay times measured between different units operating at the same supply voltages, load, and ambient temperature. 3. Start-up time is the time period from the application of power to valid data at the output. |
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