Invention Application
- Patent Title: INTEGRATED CIRCUIT INCLUDING PHASE LOCKED LOOP CIRCUIT
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Application No.: US16216226Application Date: 2018-12-11
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Publication No.: US20200021298A1Publication Date: 2020-01-16
- Inventor: Gyu Sik KIM , Woo Seok KIM , Tae Ik KIM , Hwan Seok YEO
- Applicant: Samsung Electronics Co., Ltd.
- Priority: KR10-2018-0081730 20180713
- Main IPC: H03L7/089
- IPC: H03L7/089 ; H03L7/099

Abstract:
A phase locked loop circuit includes a voltage controlled oscillator configured to output a clock signal having a predetermined frequency based in a control voltage, a phase frequency detector configured to compare the clock signal with a reference signal to output a first control signal and a second control signal, a charge pump configured to output the control voltage based on the first control signal and the second control signal, a voltage supply including an output terminal connected to an output terminal of the charge pump by a transmission switch, and a leakage remover circuit connected to the transmission switch and configured to remove a leakage current flowing through the transmission switch while the transmission switch is turned-off.
Public/Granted literature
- US11005484B2 Integrated circuit including phase locked loop circuit Public/Granted day:2021-05-11
Information query
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