Narrow deviation voltage controlled crystal oscillator for mobil

Details Narrow deviation voltage controlled crystal oscillator for mobil Narrow deviation voltage controlled crystal oscillator for mobil

1977-05-31

1979-01-09

Grimm, Siegfried H.

Oscillators

Solid state active element oscillator

Transistors

331 76, 331 77, 331177V, 332 16T, 332 26, 332 30V, H03B 536, H03C 322, H03C 328

Patent

active

041340850

ABSTRACT:
A linear sensitivity voltage controlled crystal oscillator of the type including a resonator coupled to a negative resistance generator. The resonator comprises a crystal connected in series with a voltage variable capacitance device. The response of the resonator is linearized by the addition of an inductance across the voltage variable capacitance device. A resistor is shunted across the crystal to prevent oscillation at spurious resonances of the resonator.

REFERENCES:
patent: 3382462 (1968-05-01), Davis
patent: 3528032 (1970-09-01), Tahmisian, Jr. et al.
patent: 3581240 (1971-05-01), Enderby
patent: 3631364 (1971-12-01), Schilb et al.
Driscoll, IEEE Transactions on Instrumentation and Measurement, vol. IM-23, No. 2, Jun. 1974, pp. 131-140.

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