Title :
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
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;
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
DOI :
10.1109/EDSSC.2008.4760747
