Frequency synthesizer having modulation deviation correction via

Details Frequency synthesizer having modulation deviation correction via Frequency synthesizer having modulation deviation correction via

1994-11-01

1996-01-09

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Plural a.f.s. for a single oscillator

331 16, 331 17, 331 25, 332127, 455 76, 455113, 455119, H03C 309, H03L 7189

Patent

active

054832039

ABSTRACT:
A frequency synthesizer 10 having a digital to analog converter (DAC) 40 and a feedback system which detects the deviation of a frequency modulated signal and aligns the detected deviation. DAC 40 provides a presteering stimulus for alignment purposes. After presteering alignment, the gain of DAC 40 is accurately set for frequency deviation because modulation is sourced from the same digital to analog converter that performs presteering.

REFERENCES:
patent: 5027087 (1991-06-01), Rottinghaus
patent: 5036295 (1991-07-01), Kamitani
patent: 5207491 (1993-05-01), Rottinghaus

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