A Low-Voltage Low-Power CMOS Analog Adaptive Equalizer for UTP-5 Cables

Author

Fayed, Ayman A. ; Ismail, Mohammed

Author_Institution

Texas Instrum. Inc., Dallas

Volume

55

Issue

2

fYear

2008

fDate

3/1/2008 12:00:00 AM

Firstpage

480

Lastpage

495

Abstract

An analog adaptive equalizer based on a feed-forward architecture is implemented in 0.18-mum digital CMOS process. The equalizer is implemented with only digital core devices and operates at 125 Mbps over unshielded-twisted-pair category-5 cable of up to 100 m. Novel low-power circuit and system techniques resulted in 3.7-mW total power consumption and supply voltage operation as low as 1.6 V. The maximum peak-to-peak jitter at the output of the equalizer (including the transmit path driver) under all cable length is 0.33 UI. The total area of the equalizer is 27738 mum².

Keywords

CMOS analogue integrated circuits; CMOS digital integrated circuits; adaptive equalisers; feedforward; low-power electronics; twisted pair cables; UTP-5 cables; analog adaptive equalizer; feed-forward architecture; low-voltage low-power digital CMOS; power 3.7 mW; size 0.18 mum; unshielded-twisted-pair category-5 cable; Adaptive Equalizers; Adaptive Filters; Adaptive equalizers; CMOS integrated circuits; Intersymbol interference; Transceivers; adaptive filters; intersymbol interference (ISI); transceivers;

fLanguage

English

Journal_Title

Circuits and Systems I: Regular Papers, IEEE Transactions on

Publisher

ieee

ISSN

1549-8328

Type

jour

DOI

10.1109/TCSI.2008.916440

Filename

4435071