Power supply circuit for a phase-locked loop

Details Power supply circuit for a phase-locked loop Power supply circuit for a phase-locked loop

2006-12-07

2010-06-01

Kinkead, Arnold (Department: 2817)

Oscillators

With particular source of power or bias voltage

C331S016000, C331S057000, C331S175000, C331S176000, C331S182000, C331S183000, C331S184000, C327S156000, C327S157000, C327S158000, C327S159000, C327S185000, C327S186000, C327S540000, C365S226000, C330S279000

Reexamination Certificate

active

07728688

ABSTRACT:
A power supply circuit includes a first voltage regulator to generate a first supply voltage for a first circuit of a phase-locked loop and a second voltage regulator to generate a second supply voltage for a second circuit of the phase-locked loop. The first and second supply voltages are independently generated by the first and second voltage regulators based on the same reference signal. The first circuit may be a charge pump and the second circuit may be a voltage-controlled oscillator. Different circuits may be supplied with the independently generated supply voltages in alternative embodiments.

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U.S. Appl. No. 11/210,050, filed Aug. 22, 2005, Joseph Shor et al.

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