Frequency synthesizer with on-chip inductor

Details Frequency synthesizer with on-chip inductor Frequency synthesizer with on-chip inductor

2007-10-02

2007-10-02

Chang, Joseph (Department: 2817)

Oscillators

Solid state active element oscillator

Transistors

C331S057000

Reexamination Certificate

active

10940422

ABSTRACT:
A system and method are disclosed for generating a synthesized signal. A frequency synthesizer is used. The frequency synthesizer includes an input interface configured to receive an input signal having a reference frequency; a phase locked loop (PLL) coupled to the input interface, having a fractional N configuration and comprises a voltage controlled oscillator; wherein the voltage controlled oscillator is configured to generate the synthesized signal; and the voltage controlled oscillator includes an on-chip inductor.

REFERENCES:
patent: 5561398 (1996-10-01), Rasmussen
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patent: 6085075 (2000-07-01), Van Bezooijen
patent: 6094569 (2000-07-01), Wang
patent: 6219397 (2001-04-01), Park
patent: 6268777 (2001-07-01), Welch
patent: 6608361 (2003-08-01), Chang et al.
patent: 6700447 (2004-03-01), Nilsson
patent: 2002/0039050 (2002-04-01), Griffith et al.
patent: 2003/0232610 (2003-12-01), Lin et al.
patent: 2004/0061563 (2004-04-01), Akeyama et al.

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