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Registered CLOCK AND DATA RECOVERY APPARATUS

클럭 및 데이터 복원 장치
이미지 확대
Inventors
Byun Sangjin, Yu Hyun Kyu
Application No.
11280187 (2005.11.15)
Publication No.
20060104399 (2006.05.18)
Registration No.
7751521 (2010.07.06)
Country
UNITED STATES
Project Code
04MB3700, Development of 10Gbps Mixed SoC Platform, Yu Hyun Kyu
Abstract
A clock and data recovery apparatus reduces current consumption and enables easy integration. The inventive apparatus includes a first loop including a frequency/phase detection unit, a first charge pump unit, a multiplexing unit, a filtering unit, and a voltage controlled oscillator unit operating at a speed � as fast as that of received data; a second loop having a phase detection unit operating at a speed � as fast as a speed of received data, a second charge pump unit suitable for the phase detection unit, the multiplexing unit, the filtering unit, and the voltage controlled oscillator unit; a frequency lock detection unit for judging whether a frequency of a feedback clock signal falls within a desired frequency range; and a data recovery unit for recovering data from received da
KSP Keywords
Charge pump, Clock and Data Recovery, Current consumption, Data recovery, Frequency Range, Frequency lock, Phase Detection, Pump unit, Voltage controlled oscillator(VCO), clock signal, second loop, voltage controlled