Invention Grant
- Patent Title: Clock and data recovery circuit
- Patent Title (中): 时钟和数据恢复电路
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Application No.: US13347056Application Date: 2012-01-10
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Publication No.: US08699649B2Publication Date: 2014-04-15
- Inventor: Sang Jin Byun
- Applicant: Sang Jin Byun
- Applicant Address: KR Seoul
- Assignee: Dongguk University Industry-Academic Cooperation Foundation
- Current Assignee: Dongguk University Industry-Academic Cooperation Foundation
- Current Assignee Address: KR Seoul
- Agency: Grossman Tucker Perreault & Pfleger, PLLC
- Priority: KR10-2009-0080889 20090831
- Main IPC: H03D3/24
- IPC: H03D3/24

Abstract:
A clock and data recovery circuit is disclosed. The clock and data recovery circuit in accordance with an embodiment of the present invention uses a hybrid phase detector that is constituted by including a linear phase detector and a binary phase detector. Since the clock and data recovery circuit basically is constituted with the linear phase detector, a charge pump, a loop filter, a voltage controlled oscillator and a D flip flop to recover clock and data, a phase detector gain is irrelevant to the jitter of received data and recovered clock, and it is possible to make a fine adjustment of the size of up/down currents of the charge pump using the binary phase detector and a charge pump controller, thereby compensating a phase offset between the received data and the recovered clock.
Public/Granted literature
- US20120106689A1 CLOCK AND DATA RECOVERY CIRCUIT Public/Granted day:2012-05-03
Information query
IPC分类: