PLL oscillation circuit, polar transmitting circuit, and...

Details PLL oscillation circuit, polar transmitting circuit, and... PLL oscillation circuit, polar transmitting circuit, and...

2009-05-20

2010-11-23

Chang, Joseph (Department: 2817)

Oscillators

Amplitude control or stabilization

C331S017000, C331S109000, C331S175000, C332S127000, C332S128000, C332S145000, C332S151000

Reexamination Certificate

active

07839230

ABSTRACT:
Provided is a PLL oscillation circuit that can reduce the variability of modulation sensitivity of a VCO101and obtain a desired output amplitude quickly with high precision. An amplitude detector103detects an output amplitude of the VCO101. An amplitude controller105controls a current value of a variable current source109so as to have an output amplitude of the VCO101detected by the amplitude detector103to be a desired amplitude. A LPF108is connected between the amplitude controller105and the variable current source109. A switch107connects or disconnects the LPF108between the amplitude controller105and the variable current source109. The amplitude controller105is connected to the variable current source109through either the LPF108or the switching switch107.

REFERENCES:
patent: 6137375 (2000-10-01), Li
patent: 6268780 (2001-07-01), Olgaard et al.
patent: 6680655 (2004-01-01), Rogers
patent: 7012470 (2006-03-01), Suzuki et al.
patent: 7332979 (2008-02-01), Connell et al.
patent: 7675379 (2010-03-01), Groe
patent: 2002/0168038 (2002-11-01), Damgaard et al.
patent: 2006/0290437 (2006-12-01), Kimura
patent: 06-104640 (1994-04-01), None
patent: 2004-080624 (2004-03-01), None
patent: 2004-527982 (2004-09-01), None
patent: 02/097965 (2002-12-01), None

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