Charge-pump glitch filter

Communications: electrical – Audible indication – Percussion-type sound producer

Patent

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Details

340347M, 328128, 328165, 307543, 307555, 364825, H03K 1302, H03K 508, H03H 1112, H04B 1500

Patent

active

044306415

ABSTRACT:
A circuit including a conventional digital-to-analog converter (DAC) and a charge pump for producing an analog representation of an input waveform defined by an input digital bit stream, the analog representation being relatively free of spurious aberrations usually present in the output of a conventional DAC. The charge pump and an associated integrator are used to produce a first approximation of the input waveform and the DAC and an associated detuned slew-rate filter are used to maintain the first approximation in long-term conformance with a more accurate second approximation. Spurious aberrations in the second approximation are integrated over several steps of the input bit stream, thereby minimizing their adverse impact on the relatively true first approximation.

REFERENCES:
patent: 3628061 (1971-12-01), Jackman
patent: 3676698 (1972-07-01), Hunter
patent: 3676784 (1972-07-01), Le Compte
patent: 3755750 (1973-08-01), Heberling
patent: 3893036 (1975-07-01), Cavoretto et al.
patent: 3912916 (1975-10-01), Grun et al.
patent: 3918046 (1975-11-01), Rivers
patent: 3919649 (1975-11-01), Logemann
patent: 4016559 (1977-04-01), Pastoriza
patent: 4101839 (1978-07-01), Poole et al.
patent: 4132908 (1979-02-01), Hughes
patent: 4163948 (1979-08-01), Rieger et al.
patent: 4204170 (1980-05-01), Kage
patent: 4275453 (1981-06-01), Wagner

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