Fractional frequency divider

Details Fractional frequency divider Fractional frequency divider

1998-12-09

2000-12-05

Wambach, Margaret R.

Electrical pulse counters, pulse dividers, or shift registers: c

Systems

Pulse multiplication or division

377 47, 327115, 327117, H03K 2100

Patent

active

061576948

ABSTRACT:
In systems embodying the invention X clock signals having the same frequency, with each clock signal having a different phase, are supplied to the inputs of a multiplexer whose output is connected to the input of an "integer" frequency divider circuit; where X is an integer greater than 1. The mulitplexer is controlled to selectively supply different ones of the X clock signals to the frequency divider circuit for producing at the output of the frequency divider circuit a signal whose frequency is a function of the divider ratio of the frequency divider circuit and the sequencing of the clock signals supplied to the frequency divider circuit.

REFERENCES:
patent: 5189685 (1993-02-01), Jaffard et al.
patent: 5982210 (1999-11-01), Rogers

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