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1. (WO2018222621) CIRCUIT FOR AND METHOD OF IMPLEMENTING A DIFFERENTIAL INPUT RECEIVER

Pub. No.:    WO/2018/222621    International Application No.:    PCT/US2018/034952
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Wed May 30 01:59:59 CEST 2018
IPC: H03F 3/45
H03F 3/195
H03F 1/52
H04L 25/03
H04B 1/16
H03K 19/0185
H03H 11/04
Applicants: XILINX, INC.
Inventors: CAREY, Declan
Title: CIRCUIT FOR AND METHOD OF IMPLEMENTING A DIFFERENTIAL INPUT RECEIVER
Abstract:
A differential input receiver comprises an input circuit (402) having first (410) and second (418) input nodes configured to receive a differential input signal; a first output circuit (419) having a first capacitor (420) coupled between the first input node and a first output node (422) and a second capacitor (424) coupled between the second input node and a second output node (425), wherein the first output circuit generates an output signal at the first and second outputs when the input signal is in a first frequency range; and a second output circuit (450) comprising an amplifier (502) having a first amplifier input coupled to the first input node (410) and a second amplifier input coupled to the second input node (418), wherein the second output circuit generates an output signal when the input signal is in a second frequency range lower than the first frequency range.