论文信息 - A Half-Rate Bang-Bang Phase/Frequency Detector for Continuous-Rate CDR Circuits

A Half-Rate Bang-Bang Phase/Frequency Detector for Continuous-Rate CDR Circuits

A half-rate bang-bang phase and frequency detector (BBPFD) is presented for continuous-rate clock and data recovery (CDR) circuits. The proposed half-rate BBPFD not only preserves the advantages of conventional BBPDs, but also has the infinite unilateral frequency detection range. To verify the proposed circuit, a continuous-rate CDR circuit with the proposed BBPFD has been fabricated in a 0.18um CMOS process. It can recover the NRZ data with the bit rate ranging from 622 Mbps to 3.125 Gbps. The measured bit-error rate is less than 10-12. The core area is 0.33 x 0.27 mm2 and the power consumption is 80 mW from a 1.8 V supply.

Shen-Iuan Liu | Chang-Lin Hsieh | Shao-Hung Lin

[1] Shen-Iuan Liu,et al. A 155.52 mbps-3.125 gbps continuous-rate clock and data recovery circuit , 2006, IEEE J. Solid State Circuits.

[2] J.D.H. Alexander. Clock recovery from random binary signals , 1975 .

[3] Shen-Iuan Liu,et al. A 200-Mbps 2-Gbps Continuous-Rate Clock-and-Data-Recovery Circuit , 2006 .

[4] Paulo Moreira,et al. Simple frequency detector circuit for biphase and NRZ clock recovery , 1998 .

[5] U. Langmann,et al. A Si bipolar phase and frequency detector IC for clock extraction up to 8 Gb/s , 1992 .

[6] Shen-Iuan Liu,et al. A 200-Mbps/spl sim/2-Gbps continuous-rate clock-and-data-recovery circuit , 2006, IEEE Transactions on Circuits and Systems I: Regular Papers.

[7] Behzad Razavi,et al. A 10-Gb/s CMOS clock and data recovery circuit with a half-rate binary phase/frequency detector , 2003, IEEE J. Solid State Circuits.

[8] B. Stilling. Bit rate and protocol independent clock and data recovery , 2000 .