The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 2010
Filed:
Nov. 14, 2007
Hugo Cheung, Tucson, AZ (US);
Jatinder Singh, Tucson, AZ (US);
Hugo Cheung, Tucson, AZ (US);
Jatinder Singh, Tucson, AZ (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A frequency divider (A) includes an asynchronous finite state machine (AFSM) configured as a counter () having an input coupled to an input clock signal (CLK) for producing information representative of a plurality of phase signals (F,F,F,F) each of which is a divided-down representation of the input clock signal (CLK) and each of which is phase-shifted by a predetermined amount with respect to another of the phase signals (F,F,F,F). Programmable circuitry () operates in response to both dynamic divide ratio information (DIV_RATIO) and the information representative of the plurality of phase signals (F,F,F,F) so as to generate an output clock signal (CLKOUT) that is divided down according to both the dynamic divide ratio information and the information representative of the plurality of phase signals (F,F,F,F).