Amplifier and radio frequency tuner

Details Amplifier and radio frequency tuner Amplifier and radio frequency tuner

2006-02-07

2006-02-07

Nguyen, Khanh V. (Department: 2817)

Amplifiers

Signal feedback

Amplifier in signal feedback path

C330S291000

Reexamination Certificate

active

06995610

ABSTRACT:
An LNA for use as an input stage of a radio frequency tuner comprises an inverting amplifier stage and a transconductance stage. The amplifier stage has an input connected via an input resistance to an input of the amplifier and via a feedback resistance to an output of the amplifier stage. The transconductance stage passes a current through the input resistance which is substantially proportional to the output voltage of the amplifier stage.

REFERENCES:
patent: 5374966 (1994-12-01), Weigand
patent: 5498865 (1996-03-01), Gaboury et al.
patent: 5581213 (1996-12-01), Linder et al.
patent: 5631598 (1997-05-01), Miranda et al.
patent: 6137101 (2000-10-01), Yokogawa et al.
patent: 2 305563 (1996-08-01), None
Search Report regarding corresponding Application No. GB 0212335.4 dated Nov. 26, 2002.

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