A 39-to-45-Gbit

We describe a 40-Gbit/s-class clock and data recovery (CDR) circuit with an extremely wide pull-in range. A Darlington-type voltage-controlled oscillator (VCO) is newly designed to cover the STM-256/OC-768 full-rate-clock frequencies with a wide frequency margin. We also describe a new lock detector...

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Bibliographic Details
Published in:	IEEE Journal of solid state circuits 39, 8 (2004).
Main Author:	Nosaka, H.
Format:	Article
Language:	English
Subjects:	39 to 45 Gbit/s. CDR IC. CDR circuit. Darlington-type voltage-controlled oscillator. FSPC circuit. InP-InGaAs. Exclusive-NOR gate. Frequency acquisition. Frequency search. Heterojunction bipolar transistor circuit. Multidata-rate clock data recovery circuit. Peak-to-peak jitter. Phase control. Phase-locked loop. Rms jitter. Robust lock detector.