A Wide-Range FD for Referenceless Baud-Rate CDR Circuits
Journal
IEEE Transactions on Circuits and Systems II: Express Briefs
Journal Volume
69
Journal Issue
1
Pages
60-64
Date Issued
2022
Author(s)
Abstract
A wide-range frequency detector (FD) is presented for baud-rate clock and data recovery (CDR) circuits. It achieves a wide frequency capture range, a short lock time, and a low power. By using this FD, a referenceless quarter-rate CDR circuit with a one-tap decision feedback equalizer is fabricated in 40-nm CMOS technology. The active area of this CDR circuit is 0.0999mm2 and its power is 44mW while the data rate is 16.8Gbps. The calculated energy efficiency of this CDR circuit is 2.62pJ/b. ? 2004-2012 IEEE.
Subjects
Baud rate
clock and data recovery
decision feedback equalizer
frequency detector
quarter-rate
Decision feedback equalizers
Energy efficiency
Finite difference method
Timing circuits
Active area
Clock and data recovery
CMOS technology
Data rates
Frequency captures
Frequency detectors
Lock time
Quarter-rate
Clock and data recovery circuits (CDR circuits)
SDGs
Type
journal article