PLL frequency synthesizer using charge pump

Details PLL frequency synthesizer using charge pump PLL frequency synthesizer using charge pump

2005-09-06

2005-09-06

Kinkead, Arnold (Department: 2817)

Oscillators

With particular source of power or bias voltage

C331S016000, C331S00100A, C327S156000, C327S159000

Reexamination Certificate

active

06940359

ABSTRACT:
In order to reduce the possibility of disturbing the drain/absorption balance of a charge pump in the PLL frequency synthesizer using the charge pump, when the output voltage and output current of the charge pump come close to their driving limits, the power supply voltage of a voltage-controlled oscillator is changed to cancel a change in input voltage of the voltage-controlled oscillator.

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