Patent ID: 6356160
Filing Date: 2002-03-12
Classification: H03L,H04L

Abstract:
A high speed data receiver comprising:differential input connections for receiving differential analog input voltage signals; a phase detector circuit coupled to receive the differential analog input voltage signals and provide a differential analog voltage output; a transconductance circuit coupled to the phase detector circuit for converting the differential analog voltage output into an analog output current, the transconductance circuit has a gain which is dependent upon a control voltage; a filter network for converting the output current from the transconductance circuit into an analog voltage to be used as input for the oscillator; the oscillator is coupled to the transconductance circuit through the filter network and providing a second input signal to the phase detector in response to the analog output current; and an automatic gain control circuit coupled to the transconductance circuit for providing the control voltage signal in response to an amplitude differential of the differential analog input voltage signals.