Digital isolator module having additional delay path

Abstract

A digital isolator module having additional delay path is provided, comprising a transmitter circuit receiving a data input signal and generating a first and second transmitter output signal. The second transmitter output signal is a delay signal of the first transmitter output signal. An isolation barrier is then configured, accordingly developing a first and second isolated output signal. And a receiver circuit accordingly generates a data output signal in response to the first and second isolated output signals. By employing a delay circuit in the disclosed transmitter circuit for delaying the first transmitter output signal and generating the second transmitter output signal, receiving signals at the receiver input terminal can be enhanced, robustness of data transmission is greatly improved and common mode voltage instability is suppressed. A pulse carrier modulation technique is further developed in the disclosed digital isolator module for reducing power consumption, electromagnetic interferences and jitter disturbance.

Dependencies are inferred from the claim text.