Voltage controlled oscillator

Details Voltage controlled oscillator Voltage controlled oscillator

2008-01-01

2008-01-01

Lee, Benny (Department: 2817)

Oscillators

With distributed parameter resonator

Parallel wire type

C331S057000, C331S114000, C331S10800D, C331S135000, C331S17700V

Reexamination Certificate

active

07315220

ABSTRACT:
A voltage controlled oscillator (VCO) having a single stage ring-oscillator having both coarse and fine control of the frequency of oscillation is described. In an embodiment the VCO may include a first n-channel latch having a first output and a second output; a first P-channel transistor coupled between a voltage supply and a first VCO output, where a gate of the first P-channel transistor is coupled to the first output of the first n-channel latch; a first programmable resistor circuit coupled between the first VCO output and the first output of the first n-channel latch; and a second n-channel latch coupled to the first VCO output.

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