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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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SP508CF 数据表(PDF) 17 Page - Sipex Corporation |
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SP508CF 数据表(HTML) 17 Page - Sipex Corporation |
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17 / 30 page  17 Date: 8/19/04 SP508 Enhanced WAN Multi–Protocol Serial Transceiver © Copyright 2004 Sipex Corporation Figure 34. Driver Timing Test Load Circuit Figure 35. Receiver Timing Test Load Circuit Figure 36. Driver Propagation Delays Figure 37. Driver Enable and Disable Times Figure 38. Receiver Propagation Delays 500Ω CL Output Under Test S1 S2 VCC 1KΩ 1KΩ CRL Receiver Output S1 S2 Test Point VCC +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 < 10ns; tF < 10ns VO 1/2VO 1/2VO tPHL tDPLH tDPHL tSKEW = | tDPLH - tDPHL | +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 VOH VOL RECEIVER OUT (VOH - VOL)/2 (VOH - VOL)/2 tPLH f > 10MHz; tR < 10ns; tF < 10ns OUTPUT V0D2+ V0D2– A – B 0V 0V tPHL INPUT t SKEW = | tPHL - tPLH | |
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