Radio-frequency module with phase lock loop and frequency settin

Details Radio-frequency module with phase lock loop and frequency settin Radio-frequency module with phase lock loop and frequency settin

1995-12-22

1998-01-20

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Tuning compensation

331 17, 331DIG2, 332100, 375303, 375376, H03L 7093, H03L 7095, H04L 2712

Patent

active

057105251

ABSTRACT:
A radio-frequency module detachably mounted to a transmitter in a radio-control apparatus to supply a high frequency signal to a transmitter. The module includes a phase-lock loop (PLL) circuit along with low pass filters and a voltage controlled oscillator to form a PLL oscillator loop. A rotary switch which is manually set provides an indication to a microprocessor of the desired frequency. The microprocessor supplies the PLL circuit with frequency data. An error voltage is generated by the low pass filters.

REFERENCES:
patent: 4135165 (1979-01-01), Coe
patent: 4506233 (1985-03-01), Englund, Jr.
patent: 5254958 (1993-10-01), Flach et al.

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