A 20 Gb/s 1:4 DEMUX Without Inductors and Low-Power Divide-by-2 Circuit in 0.13 \mu} CMOS Technology

In this paper, a 20 Gb/s 1:4 DEMUX without inductors is presented. A coupled latch with shared current source and buffer insertion scheme improves the signal bandwidth. A divide-by-2 circuit with a static frequency divider and a delay-locked loop achieves low power consumption and enhanced timing ma...

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Bibliographic Details
Published inIEEE journal of solid-state circuits Vol. 43; no. 2; pp. 541 - 549
Main Authors Kim, Byung-Guk, Kim, Lee-Sup, Byun, Sangjin, Yu, Hyun-Kyu
Format Journal Article
LanguageEnglish
Published IEEE 01.02.2008
Subjects
Bandwidth
CMOS
CMOS technology
Coupling circuits
Delay
delay-locked loop (DLL)
DEMUX
Energy consumption
Frequency conversion
Inductors
latch
Latches
Logic testing
static frequency divider
Timing
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Summary:In this paper, a 20 Gb/s 1:4 DEMUX without inductors is presented. A coupled latch with shared current source and buffer insertion scheme improves the signal bandwidth. A divide-by-2 circuit with a static frequency divider and a delay-locked loop achieves low power consumption and enhanced timing margin without the degradation of the divider sensitivity. A horizontal eye opening is 71.3%, and a vertical eye opening is 52%. The test chip fabricated in a 0.13 mum process consumes 210 mW from 1.2 V logic supply.
ISSN:0018-9200
1558-173X
DOI:10.1109/JSSC.2007.914332