Name
Title | ||
|---|---|---|
A 1.0–4.0-Gb/s All-Digital CDR With 1.0-ps Period Resolution DCO and Adaptive Proportional Gain Control |
Abstract | ||
|---|---|---|
This paper describes the design and implementation of an all-digital clock and data recovery circuit (ADCDR) for multigigabit/s operation. The proposed digitally-controlled oscillator (DCO) incorporating a supply-controlled ring oscillator with a digitally-controlled resistor (DCR) generates wide-frequency-range multiphase clocks with fine resolution. With an adaptive proportional gain controller (APGC) which continuously adjusts a proportional gain, the proposed ADCDR recovers data with a low-jitter clock and tracks large input jitter rapidly, resulting in enhanced jitter performance. A digital frequency-acquisition loop with a proportional control greatly reduces acquisition time. Fabricated in a 0.13-μm CMOS process with a 1.2-V supply, the ADCDR occupies 0.074 mm2 and operates from 1.0 Gb/s to 4.0 Gb/s with a bit error rate of less than 10-14. At a 3.0-Gb/s 231 - 1 PRBS, the measured jitter in the recovered clock is 3.59 psrms and 29.4 pspp, and the power consumption is 11.4 mW. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1109/JSSC.2010.2082272 | IEEE Journal of Solid-state Circuits |
Keywords | Field | DocType |
cmos process,all-digital clock and data recovery,proportional control,adaptive proportional gain control,power consumption,supply-controlled ring oscillator,period resolution,voltage 1.2 v,digitally-controlled oscillator,jitter,low-jitter clock,digital frequency-acquisition loop,dco,low-power electronics,bit rate 1 gbit/s to 4 gbit/s,adcdr,high-speed interface,clock and data recovery,clocks,adaptive control,gain control,cmos digital integrated circuits,apgc,wide-frequency-range multiphase clock,digitally-controlled resistor,uhf oscillators,all-digital clock and data recovery circuit,mmic oscillators,dcr,size 0.13 mum,clock and data recovery circuits,digital control,resistors,bit error rate,low power electronics,digital controller,decoding,digitally controlled oscillator,ring oscillator | Digitally controlled oscillator,Ring oscillator,Proportional control,Computer science,Electronic engineering,Jitter,Automatic gain control,Digital control,Bit error rate,Low-power electronics | Journal |
Volume | Issue | ISSN |
46 | 2 | 0018-9200 |
Citations | PageRank | References |
22 | 1.39 | 10 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Heesoo Song | 1 | 39 | 3.48 |
| Deok-Soo Kim | 2 | 633 | 59.12 |
| Do-Hwan Oh | 3 | 37 | 3.47 |
| Suhwan Kim | 4 | 494 | 74.23 |
| Deog-Kyoon Jeong | 5 | 626 | 119.05 |