Hybrid automatic gain control circuit

Details Hybrid automatic gain control circuit Hybrid automatic gain control circuit

H - Electricity

03

G

330/104, 330/39

H03G 3/20 (2006.01)

Patent

CA 1138058

ABSTRACT OF THE DISCLOSURE An automatic gain control circuit having a coarse analog gain adjustment section producing discrete increments of db gain and a fine digital gain adjustment section. The digital section provides for adjustment of gain through a final increment of db gain to achieve precise gain setting. The output of the digital section is squared and compared to a reference signal to derive an error signal whose value is fed to an apparatus which iteratively determines the precise coarse increment and fine digital settings to achieve the final desired gain setting.

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