Same Polarity Driving Circuit

Published:2011/5/5 0:59:00 Author:Robert | Keyword: Same Polarity, Driving | From:SeekIC

The 74S140 driver with the same polarity, through the shielded cable, twisted-paircable or coaxial cable, transmits data to the HCPL-2602 optocoupler wide receiver in a high speed data transmission. The reflex action caused by active-ended receiver would not affect its performance. By connecting to a capacitor C and a resistance R in series could make its data transmission speed up to highest possible speed. The C should be as large as possible, and do not prevent the voltage regulator tube's shutoff during input signal negative bias. If try to let tPHL=tPLH, that can achieve the highest data transmission speed.



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