Low phase noise crystal oscillator with supply noise filtering

Details Low phase noise crystal oscillator with supply noise filtering Low phase noise crystal oscillator with supply noise filtering

2007-06-26

2007-06-26

Chang, Joseph (Department: 2817)

Oscillators

Electromechanical resonator

Crystal

C331S186000

Reexamination Certificate

active

11084941

ABSTRACT:
A low phase noise crystal oscillator with supply noise filtering is provided and may comprise receiving an input voltage at a positive potential input of an oscillator circuit, which may comprise an oscillator core and a buffer coupled to an output of the oscillator core. Noise caused by the input voltage that may affect the buffer may be filtered using a resistor coupled between the positive potential input of the oscillator circuit and the input voltage, and a capacitor coupled between the positive potential input of the oscillator circuit and a ground of the oscillator circuit. The noise may be filtered via a low pass filter, which may comprise at least the resistor and the capacitor. A cutoff frequency may be selected for the low pass filter, and a resistance value for the resistor and a capacitance value for the capacitor may be selected appropriately.

REFERENCES:
patent: 5212460 (1993-05-01), Tamagawa
patent: 5546055 (1996-08-01), Klughart
patent: 6166609 (2000-12-01), Nakamiya et al.
patent: 2002/0167367 (2002-11-01), Ingino

Affiliated with

Also associated with

Rating

Low phase noise crystal oscillator with supply noise filtering does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low phase noise crystal oscillator with supply noise filtering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low phase noise crystal oscillator with supply noise filtering will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3879509