Wide band tunable and modulatable reference oscillator

Details Wide band tunable and modulatable reference oscillator Wide band tunable and modulatable reference oscillator

1994-04-04

1996-02-27

Eisenzopf, Reinhard J.

Oscillators

Electromechanical resonator

Crystal

332136, 455258, 455318, H03B 532, H04B 126

Patent

active

054952085

ABSTRACT:
A tuning circuit for a reference oscillator (200) including voltage variable capacitors (222, 224) in a back to back configuration and providing a control terminal for voltage controlled tuning of the reference oscillator (200). Also included in the tuning circuit is a modulation bias circuit for modulating the reference oscillator (200).

REFERENCES:
patent: 3878408 (1975-04-01), Nemoto
patent: 3991378 (1975-10-01), Buchanan
patent: 4630008 (1986-12-01), Weeks
patent: 4801898 (1989-01-01), Obayashi
patent: 4827226 (1989-05-01), Connell
patent: 4851791 (1989-07-01), Marotel
patent: 4851792 (1989-07-01), Ochiai et al.
patent: 5107522 (1992-04-01), Kitayama et al.
patent: 5173835 (1992-12-01), Cornett et al.

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