Patent ID: 8743973
Filing Date: 2014-06-03
Classification: H04L

Abstract:
1. A receiver circuit to receive signals from first and second pairs of transmission lines external to the receiver circuit, wherein the first pair of transmission lines and the second pair of transmission lines each have a common-mode impedance and a differential-mode impedance, the receiver circuit comprising: first and second interfaces, each comprising a first input node and a second input node, the first and second input nodes of a respective interface to receive respective ones of the signals from respective ones of the transmission lines; a resistor network comprising: a differential amplifier comprising a first input coupled to the first interface, a second input coupled to the second interface, and an output to provide a signal derived from common mode components of the signals received at the first and second input nodes of the first and second interfaces; and four resistors, each connecting a respective input node of the first and second interfaces to a common reference level, wherein the four resistors each have a resistance R wherein: