Phase rotator apparatus

Phase rotator apparatus

A phase rotator apparatus has phase interpolation and transimpedance amplifier (TIA) stages. This separates gain and bandwidth as degrees of design freedom, facilitating a reduction in power consumption while enabling the data link to transmit and receive higher speed data. Four phases of an incomin...

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Hauptverfasser: Cranford, Jr., Hayden C, Zhang, Fengqi, Sharma, Vivek K, Bucossi, William L
Format: Patent
Sprache:eng
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AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
PULSE TECHNIQUE
RESONATORS
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creator Cranford, Jr., Hayden C
Zhang, Fengqi
Sharma, Vivek K
Bucossi, William L
description A phase rotator apparatus has phase interpolation and transimpedance amplifier (TIA) stages. This separates gain and bandwidth as degrees of design freedom, facilitating a reduction in power consumption while enabling the data link to transmit and receive higher speed data. Four phases of an incoming signal are combined by the phase interpolation stage using weighting currents and current-source loads to produce a phase shifted current based signal that the TIA stage receives as input. The TIA stage then converts the signal to a voltage based signal. The quiescent operating voltage of the stage outputs can be maintained with common mode feedback circuits and injector currents.
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subjects AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
PULSE TECHNIQUE
RESONATORS
title Phase rotator apparatus
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