Linear gain control amplifier

Details Linear gain control amplifier Linear gain control amplifier

1990-10-15

1992-03-24

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including gain control means

330306, 330310, H03G 330

Patent

active

050992040

ABSTRACT:
An amplification circuit having a compensation circuit for receiving a control signal and generating a corresponding compensation signal according to predetermined compensation characteristics. An input amplification circuit is provided for, receiving an input signal and the compensation signal amplifying the input signal at an input gain level determined by the compensation signal and providing a corresponding input amplification circuit output signal. A filter element receives and filters unwanted frequency components from the input amplification circuit output signal. An output amplification circuit is provided for, receiving the filtered input amplification circuit output signal and the compensation signal, amplifying the filtered input amplification circuit output signal at an output gain level determined by the compensation signal and providing a corresponding output amplification circuit output signal.

REFERENCES:
patent: 3325738 (1987-06-01), Busby et al.
patent: 4500848 (1985-02-01), Marchand et al.
patent: 4740996 (1988-04-01), Somer

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