US 7,680,226 B2 · Minimizing dynamic crosstalk-induced jitter timing skew

Abstract

A digital signal waveform receiving circuit may be processed by a non-linear adaptive canonical correlation analysis circuit that may quantify and minimize crosstalk-induced jitter timing skew for improving set-up and hold timing margins of data streams on the receiving circuit. A non-linear adaptive canonical correlation analysis circuit may be placed between an incoming digital signal from a serial link and a PHY receiving layer of an information handling system 100. The PHY receiving layer of the information handling system may be coupled to the non-linear adaptive canonical correlation analysis circuit or may be coupled to the digital signal. This coupling selection may be automatically programmed depending on received signal cross-talk-induced jitter timing skew or may be programmed by a user of the information handling system.

Claims16

Dependent claims

An information handling system having a non-linear adaptive canonical correlation analysis circuit for minimizing dynamic crosstalk-induced jitter timing skew of a serial data link, said system comprising:

a non-linear adaptive canonical correlation analysis circuit coupled to a serial data link, wherein the non-linear adaptive canonical correlation analysis circuit comprises:
a serial data receiver having an output, and an input coupled to the serial data link;
a noise pattern circuit having an input coupled to the output of the serial data receiver;
and
an adaptive canonical correlation circuit having an input coupled to an output of the noise pattern circuit;
a phase-locked-loop (PLL) coupled to an output of the clock buffer wherein the PLL coherently multiplies a frequency of the system clock;
wherein the non-linear adaptive canonical correlation analysis circuit quantifies and minimizes crosstalk-induced jitter timing skew of the serial data link, based at least in part on noise from the serial data link and from one or more external noise sources;
and
wherein outputs of the phase interpolator are coupled to the serial data receiver and the adaptive canonical correlation circuit.

6 more elements

Dependencies are inferred from the claim text.

Minimizing dynamic crosstalk-induced jitter timing skew

Life of this patent

Minimizing dynamic crosstalk-induced jitter timing skew

Life of this patent

Abstract

Claims16