Invention Grant
- Patent Title: Phase locked loop with phase correction in the feedback loop
- Patent Title (中): 在反馈环路中进行相位校正的锁相环
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Application No.: US13204448Application Date: 2011-08-05
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Publication No.: US08497716B2Publication Date: 2013-07-30
- Inventor: Gang Zhang
- Applicant: Gang Zhang
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Kenyon S. Jenckes
- Main IPC: H03L7/06
- IPC: H03L7/06

Abstract:
A frequency synthesizer circuit is disclosed. The frequency synthesizer circuit includes a comparator circuit coupled to a reference clock and a phase-corrected output signal. The frequency synthesizer circuit also includes a loop filter coupled to the comparator circuit. The frequency synthesizer circuit also includes an oscillator coupled to the loop filter. The frequency synthesizer circuit also includes a fractional divider coupled to an output of the oscillator. The frequency synthesizer circuit also includes phase correction circuitry that corrects a phase of an output of the fractional divider to produce the phase-corrected output signal.
Public/Granted literature
- US20130033293A1 PHASE LOCKED LOOP WITH PHASE CORRECTION IN THE FEEDBACK LOOP Public/Granted day:2013-02-07
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