A limiting amplifier with LOS indication for gigabit ethernet

Author

Chen, W.B. ; Zou, H.J. ; Deng, M.Z. ; Li, C.Y. ; Deng, L.F.

Author_Institution

Sch. of Comput. & Commun., Hunan Univ. of Technol., Zhuzhou

fYear

2008

fDate

8-10 Dec. 2008

Firstpage

1

Lastpage

4

Abstract

The paper presents a high-gain and large-bandwidth limiting amplifier with a maximum data rate of 1.25 Gb/s for Gigabit Ethernet. Composed of a multi-stage amplifier, an output driver, an offset cancellation circuit and a signal-detection circuit, the limiting amplifier provides constant positive-referenced emitter-coupled logic (PECL) output voltage and features a programmable loss-of-signal (LOS) indication and a squelch function that mutes the data output signal when the input voltage falls below the programmable threshold. It is implemented in TSMC 0.35-mum BiCMOS technology, with an active area of 1.3times1.1 mm². Using a single 3.3-V supply voltage, measured results demonstrate that the input dynamic range is larger than 52 dB and the power consumption is only 60 mW.

Keywords

BiCMOS digital integrated circuits; emitter-coupled logic; local area networks; BiCMOS technology; LOS indication; bit rate 1.25 Gbit/s; data output signal; data rate; gigabit Ethernet; input voltage; limiting amplifier; multistage amplifier; offset cancellation circuit; positive-referenced emitter-coupled logic output voltage; power 60 mW; power consumption; programmable threshold; signal-detection circuit; size 0.35 mum; squelch function; supply voltage; voltage 3.3 V; Circuits; Ethernet networks; Hysteresis; Optical amplifiers; Optical attenuators; Optical receivers; Optical sensors; SONET; Stimulated emission; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electron Devices and Solid-State Circuits, 2008. EDSSC 2008. IEEE International Conference on

Conference_Location

Hong Kong

Print_ISBN

978-1-4244-2539-6

Electronic_ISBN

978-1-4244-2540-2

Type

conf

DOI

10.1109/EDSSC.2008.4760747

Filename

4760747