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A 20-Gb/s Burst-Mode Clock and Data Recovery Circuit Using Injection-Locking Technique

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2 Author(s)
Jri Lee ; Nat. Taiwan Univ., Taipei ; Mingchung Liu

A 20-Gb/s clock and data recovery circuit incorporates injection-locking technique to achieve high-speed operation with low power dissipation. The circuit creates spectral line at the frequency of data rate and injection-locks two cascaded LC oscillators. A frequency-monitoring mechanism is employed to ensure a close matching between the VCO natural frequency and data rate. Fabricated in 90-nm CMOS technology, this circuit achieves a bit error rate of less than 10-9 in both continuous (PRBS of 231-1) and burst modes while consuming 175 mW from a 1.5-V supply.

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:43 ,  Issue: 3 )