Low jitter phase locked loop for single phase applications

Details Low jitter phase locked loop for single phase applications Low jitter phase locked loop for single phase applications

1992-10-01

1994-04-19

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Plural a.f.s. for a single oscillator

331 17, 331 18, 331 25, H03L 706

Patent

active

053049578

ABSTRACT:
A circuit for producing an output signal representative of the phase angle of a single phase input signal includes a phase shift generator for receiving a single phase input signal and for generating a quadrature signal and a direct signal in response to the single phase input signal, and a phase locked loop coupled to the phase shift generator for generating an output signal in response to the quadrature and direct signals such that the output signal is phase locked with the single phase input signal. A method is also provided for producing an output signal representative of the phase angle of a single phase input signal, comprising the steps of: receiving a single phase input signal; generating a quadrature signal and a direct signal in response to the single phase input signal; and generating an output signal in response to the direct and quadrature signals, such that the output signal is phase locked with the single phase input signal.

REFERENCES:
patent: 4348641 (1982-09-01), Scott et al.
patent: 4384357 (1983-05-01), deBuda et al.
patent: 4669024 (1987-05-01), Stacey
patent: 4757415 (1988-07-01), Smith et al.
patent: 4963839 (1990-10-01), Stacey
patent: 5065107 (1991-11-01), Kumar et al.

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