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:
Jul. 01, 2003
Filed:
Mar. 25, 2002
Michael Reinhold, Bavaria, DE;
Miroslav Oljaca, Tucson, AZ (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A multi-mode interface circuit for coupling a delta sigma modulator ( ) to a processor includes a decoder for decoding mode selection inputs to produce a plurality of control signals controlling an oscillator and a plurality of multiplexers. The oscillator is enabled to produce a first clock signal (INTCLK). The first clock signal or an external clock signal (EXTCLK) is multiplexed as a second clock signal ( ) to the input of a code generator circuit ( ), causing it to generate a clock input signal (MCLK) applied the delta sigma modulator, third and fourth clock signals ( ), and a phase-shift-modulated signal ( ) in response to both the second clock signal and a 1-bit data signal (MDAT) produced by the delta sigma modulator. One of the third and fourth clock signals and a ground signal is multiplexed to a clock conductor ( ). The phase-shift-modulated signal or the 1-bit data signal is multiplexed onto a data output conductor ( ).