Circuit and method for attenuating noise in a data converter

Details Circuit and method for attenuating noise in a data converter Circuit and method for attenuating noise in a data converter

1999-03-08

2000-10-24

Jean Pierre, Peguy

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

341155, H03M 300

Patent

active

061374296

ABSTRACT:
A data converter (10) and a method for attenuating noise in an output signal generated by the data converter (10). The data converter (10) includes a sigma-delta modulator (16), a digital-to-analog converter (17), a clock generator (19) connected to the digital-to-analog converter (17), and a clock control circuit (18) connected to the clock generator (19). The clock control circuit (18) enables or disables the clock generator (19) in accordance with the single-bit digital signal to cause a notch characteristic in the output signal for attenuating noise in the output signal.

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patent: 5357252 (1994-10-01), Ledzius et al.
patent: 5373293 (1994-12-01), Hirata
patent: 5608401 (1997-03-01), Viswanathan et al.
patent: 5682162 (1997-10-01), Hamasaki et al.
patent: 5847667 (1998-12-01), Baek

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