Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2005-12-06
2005-12-06
Shingleton, Michael B. (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S283000, C330S253000
Reexamination Certificate
active
06972625
ABSTRACT:
Continuously tuning a transconductance. Coupling a degeneration resistance from a first source of a first transistor in a differential pair of transistors to a second source of a second transistor in the differential pair of transistors. Applying a second variable degeneration resistance in parallel to the first degeneration resistance in response to the application of a first variable control voltage. And applying a third variable degeneration resistance in parallel to the first degeneration resistance and the second degeneration resistance in response to the application of a second variable control voltage having a fixed voltage offset from the first variable control voltage.
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Nguyen Thinh Cat
Venes Arnoldus
Broadcom Corporation
Shingleton Michael B.
Sterne Kessler Goldstein & Fox P.L.L.C.
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