Low-voltage, low-jitter voltage controlled oscillator

Details Low-voltage, low-jitter voltage controlled oscillator Low-voltage, low-jitter voltage controlled oscillator

1999-03-16

2000-03-28

Lee, Benny

Oscillators

Ring oscillators

327280, 327266, H03B 2700

Patent

active

060437197

ABSTRACT:
A low-voltage, low-jitter voltage controlled oscillator according to the invention includes a plurality of delay units electrically connected in series to form a closed loop circuit. Each delay unit has a symmetric differential structure constituted by a plurality of MOS FETs. Furthermore, only two transistors are stacked between the power source and ground. Thus, the low-voltage, low-jitter voltage controlled oscillator can operate at low voltage, and can not be affected by the variation of the power source voltage.

REFERENCES:
patent: 5475344 (1995-12-01), Maneatis et al.

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