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.: US13692017Application Date: 2012-12-03
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Publication No.: US08547152B2Publication Date: 2013-10-01
- Inventor: Po-Shing Yu , Chia-Hsiang Chang , Ting-Hao Wang
- Applicant: Global Unichip Corp. , Taiwan Semiconductor Manufacturing Co., Ltd.
- Applicant Address: TW Hsinchu TW Hsin-Chu
- Assignee: Global Unichip Corp.,Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee: Global Unichip Corp.,Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee Address: TW Hsinchu TW Hsin-Chu
- Agency: McClure, Qualey & Rodack, LLP
- Priority: TW100144603A 20111205
- Main IPC: H03L7/06
- IPC: H03L7/06

Abstract:
The invention provides a clock and data recovery (CDR) circuit, including: a phase locked loop (PLL) circuit, providing a reference voltage; a first delay device, delaying an input data according to a control signal so as to generate a first delay signal; an edge detector, generating an edge signal according to the first delay signal and the input data; a second delay device, delaying the edge signal so as to generate a second delay signal; a first gated voltage-controlled oscillator, generating an output recovery clock according to the second delay signal and the reference voltage; a phase detector, detecting a phase difference between the first delay signal and the output recovery clock so as to generate a phase signal and a output recovery data; and an amplifier, amplifying the phase signal by a factor so as to generate the control signal.
Public/Granted literature
- US20130141145A1 CLOCK AND DATA RECOVERY CIRCUIT Public/Granted day:2013-06-06
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