VCO with stabilized reference current source module

Oscillators – With particular source of power or bias voltage

Reexamination Certificate

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Details

C331S057000, C331S034000, C331S175000, C327S156000

Reexamination Certificate

active

07969253

ABSTRACT:
A VCO includes a reference current module and a clock signal generating module. The reference current module generates a reference current according to a reference voltage. The clock signal generating module generates a clock signal according to the reference current. The reference current module utilizes the negative feed-back mechanism to keep the generated reference current at the predetermined size without being changed with the variation of the process and the bias source.

REFERENCES:
patent: 7116181 (2006-10-01), Bakker
patent: 7737768 (2010-06-01), Byeon
patent: 2007/0075699 (2007-04-01), Chih
patent: 101313467 (2008-11-01), None
patent: 200694334 (2006-04-01), None

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