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SP3508CF датащи(PDF) 18 Page - Sipex Corporation |
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SP3508CF датащи(HTML) 18 Page - Sipex Corporation |
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18 / 33 page ![]() 18 Date: 06/14/04 SP3508 Enhanced WAN Multi–Mode Serial Transceiver © Copyright 2004 Sipex Corporation Figure 33. Driver Timing Test Load Circuit Figure 34. Receiver Timing Test Load Circuit Figure 35. Driver Propagation Delays Figure 36. Driver Enable and Disable Times Figure 37. Receiver Propagation Delays 500Ω CL Output Under Test S1 S2 VCC 1KΩ 1KΩ CRL Receiver Output S1 S2 Test Point VCC +3V 0V 5V VOL A, B 0V 1.5V 1.5V tZL tZH VOH A, B 2.3V 2.3V tLZ tHZ 0.5V 0.5V Output normally LOW Output normally HIGH Mx or Tx_Enable f = 1MHz; tR ≤ 10ns; tF ≤ 10ns VOH VOL RECEIVER OUT (VOH - VOL)/2 (VOH - VOL)/2 tPLH f > 10MHz; tR < 5ns; tF < 5ns OUTPUT V0D2+ V0D2– A – B 0V 0V tPHL INPUT t SKEW = | tPHL - tPLH | +3V 0V DRIVER INPUT A B DRIVER OUTPUT VO+ DIFFERENTIAL OUTPUT VB – VA 0V VO– 1.5V 1.5V tPLH tR tF f > 10MHz; tR < 5ns; tF < 5ns VO 1/2VO 1/2VO tPHL tDPLH tDPHL tSKEW = | tDPLH - tDPHL | |
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