Amplifiers – With semiconductor amplifying device – Including gain control means
Patent
1993-12-13
1995-05-02
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including gain control means
330 86, 330110, H03G 320
Patent
active
054123461
ABSTRACT:
A variable gain voltage signal amplifier is provided for incorporation in an automatic gain control circuit, such as for a disk drive. The variable gain voltage signal amplifier comprises: an amplifier including an inverting input voltage signal terminal and an output voltage signal terminal. The amplifier includes an input signal path coupled to the input voltage signal terminal and further includes a feedback signal path coupling between the input voltage signal terminal and the output voltage signal terminal. The input signal path comprises a capacitor coupled in series with a resistor, and the feedback signal path comprises a resistor. At least one of the resistors comprises an electronic signal-controlled resistor.
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Burger, Jr. Harley F.
Khoury John M.
Viswanathan Tandur L.
AT&T Corp.
Mullins James B.
Skaist Howard A.
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