Communication driver

Details Communication driver Communication driver

2007-10-09

2007-10-09

Williams, Howard (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C375S259000

Reexamination Certificate

active

10972143

ABSTRACT:
An Ethernet controller includes a plurality of sets of digital-to-analog converters (DACs). Each DAC receives an input signal and provides an output signal. Each of the plurality of sets of DACs includes a plurality of sets of replica current circuits. Each DAC includes current sources. Each current source includes a respective control input. The output signal provided by each DAC includes a sum of outputs of the current sources. Each DAC also includes delay elements. An input of a first one of the delay elements receives the input signal. An mth one of the delay elements includes an input in communication with an m-1th one of the delay elements. An output of one of the delay elements controls a corresponding control input of one of the current sources. A sum of each output signal from a respective one of the plurality of sets of DACs forms an accumulated output signal.

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