Tuning circuit for use with an integrated continuous time analog

Details Tuning circuit for use with an integrated continuous time analog Tuning circuit for use with an integrated continuous time analog

1992-06-01

1993-09-14

Heyman, John S.

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Control

377 42, 341158, 341166, 307521, 3281291, H03M 112

Patent

active

052456463

ABSTRACT:
A tuning circuit (10) and method of operation for tuning an analog filter (40). The tuning circuit (10) has an integrator with an input portion (12) and a comparator portion (14), a counter (32), and a decoder (34). The integrator is implemented with an RC time constant which is proportional to an RC time constant of the analog filter (40). The comparator portion (14) provides an enable signal during the RC time constant of the integrator to the counter (16) which quantizes the RC time constant relative to a clock period of the counter (16). A predetermined decoding is performed to provide an output control signal to control adjustment of the RC time constant of the analog filter (40).

REFERENCES:
patent: 3818246 (1974-06-01), Hellworth et al.
patent: 4352010 (1982-09-01), Koogler
patent: 4661803 (1987-04-01), Nishiyama et al.
patent: 4672361 (1987-07-01), Kokubo et al.
patent: 4675649 (1987-06-01), Forehand et al.
patent: 4733205 (1988-03-01), Hughes
patent: 4783644 (1988-11-01), Kilchsperger
patent: 4791379 (1988-12-01), Hughes
patent: 4939519 (1990-07-01), Elbert
patent: 4965578 (1990-10-01), Poujois
patent: 5059836 (1991-10-01), Lee et al.
patent: 5124593 (1992-06-01), Michel
patent: 5128676 (1992-07-01), Ordway
patent: 5187445 (1993-02-01), Jackson
IEEE Transactions On Circuits and Systems, vol. 33, No. 2, Feb. 1986, New York, U.S., Tsividis, "Continuous-Time MOSFET-C Filters In VLSI", pp. 125-140.

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