Method and apparatus for sigma-delta demodulator with aperiodic

Details Method and apparatus for sigma-delta demodulator with aperiodic Method and apparatus for sigma-delta demodulator with aperiodic

1998-01-27

2000-06-06

Chin, Stephen

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

375247, 341126, 341143, 341144, H03D 100, H04L 2700, H03M 300, H03M 100

Patent

active

060728434

ABSTRACT:
According to the present disclosure, aperiodic data is applied to parallel register (500). When a predetermined relationship between an aperiodic load signal and a periodic oversample clock signal occurs, the aperiodic data is latched to the output (506) of the parallel register as substantially periodic data. The substantially periodic data is loaded into a sigma-delta DAC (502) for processing. The sigma-delta DAC (502) is driven by a periodic oversample clock to produce a 1-bit oversampled, time averaged representation of the substantially periodic data.

REFERENCES:
patent: 5055800 (1991-10-01), Black et al.
patent: 5504751 (1996-04-01), Ledzius et al.
patent: 5859605 (1999-01-01), Raghavan et al.

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