Automatic gain control circuit

Details Automatic gain control circuit Automatic gain control circuit

1981-06-02

1984-06-05

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

333 17R, 333173, 381107, H03H 1700

Patent

active

044532580

ABSTRACT:
An integrated circuit automatic gain control circuit maintains an alternating input signal at a predetermined amplitude. A ladder network of capacitors and accompanying FET switches provides for varying the gain of an integrated switched capacitor filter. The output signal from the filter is compared in a comparison circuit, the comparison circuit providing an UP signal if the output signal is too small or a DOWN signal if the output signal is too large. The UP and DOWN signal is applied to a ROM which causes a counter to count up or down in response to the UP or DOWN input signal, the counter inputting the ROM to provide control signals from the ROM for controlling the switches of the capacitor ladder network.

REFERENCES:
patent: 3281687 (1966-10-01), Boer et al.
patent: 3753159 (1973-08-01), Burwen
patent: 3794941 (1974-02-01), Templin
patent: 4112384 (1978-09-01), Buchberger
patent: 4161628 (1979-07-01), McRae
patent: 4300108 (1981-11-01), Shack et al.
patent: 4366456 (1982-12-01), Ueno et al.
The Radio and Electronic Engineer, vol. 47, No. 10, pp. 465-469, Oct. 1977. "Automatic Input Attenuator for H.F. Communication Receivers".

Affiliated with

Also associated with

Rating

Automatic gain control circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic gain control circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic gain control circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1501860