Product Summary

The DS3862 is an octal high speed schottky bus transceiver
intended for use with terminated 120?impedance lines. It is
specifically designed to reduce noise in unbalanced transmission systems. The open collector drivers generate precise trapezoidal waveforms with rise and fall times of 9 ns
(typical), which are relatively independent of capacitive loading conditions on the outputs. This reduces noise coupling to
the adjacent lines without any appreciable impact on the
maximum data rate obtainable with high speed bus transceivers. In addition, the receivers use a low pass filter in conjunction with a high speed comparator, to further enhance
the noise immunity. Tightly controlled threshold levels on the
receiver provide equal rejection to both negative and positive
going noise pulses on the bus.

Features

n Guaranteed A.C. specifications on noise immunity and
propagation delay over the specified temperature and
supply voltage range
n Temperature insensitive receiver thresholds track bus
logic level and respond symmetrically to positive and
negative going pulses
n Trapezoidal bus waveforms reduce noise coupling to
adjacent lines
n Open collector driver output allows wire-or connection
n Advanced low power schottky technology
n Glitch free power up/down protection on driver and
receiver outputs
n TTL compatible driver and control inputs, and receiver
outputs
n Control logic is the same as the DS3896