Tunable tone control circuit and a device and method for tuning

Amplifiers – With semiconductor amplifying device – Including differential amplifier

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330304, 330305, 381101, H03F 345, H03F 134

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active

056868634

ABSTRACT:
An equalizer, for providing a tunable pole/zero compensated output signal, includes a integrated tone control circuit with a MOSFET-C configuration such that the spacing between the pole and the zero and the center frequency of the pole/zero pair can be tuned by varying the resistance of MOSFET resistors using variable voltage sources applied to the gates of the MOSFETs.

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