automatic gain control

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Related to AGC circuit: Automatic volume control

automatic gain control

[¦ȯd·ə¦mad·ik ′gān kən‚trōl]
(electronics)
A control circuit that automatically changes the gain (amplification) of a receiver or other piece of equipment so that the desired output signal remains essentially constant despite variations in input signal strength. Abbreviated AGC.
References in periodicals archive ?
The DTA8042 provides the IF mixers and the AGC circuits required to generate separate in-phase and quadrature baseband signals.
The TDA8042 includes the IF mixers and AGC circuits required to generate separate in-phase and quadrature baseband signals, which are then digitized by on-chip A/D converters in the TDA8043 Demodulator/Decoder.