Phase locked loop

Details Phase locked loop Phase locked loop

1989-09-05

1990-12-25

Mis, David

Oscillators

Automatic frequency stabilization using a phase or frequency...

Tuning compensation

331 17, 331 25, H03L 718

Patent

active

049806530

ABSTRACT:
A phase locked loop (100) with a sample and hold phase detector (106) with adjustable gain. A switching circuit adjusts the slew rate of the phase detector by either introducing additional ramp capacitance (122) in the phase detector or by increasing the current for charging the ramp capacitor (116).

REFERENCES:
patent: 4330758 (1982-05-01), Swisher et al.
patent: 4568888 (1986-02-01), Kimura et al.
patent: 4714899 (1987-12-01), Kurtzman et al.
patent: 4745372 (1988-05-01), Miwa
Motorola, "Operation of the MC145159 PLL Frequency Synthesizer with Analog Phase Detector", (1987).

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