Paper Info
Title
A 2.2GHz-80dBΩ CMOS receiver front-end for short-range optical communication employing DMT/OFDM
Abstract
This paper presents a novel receiver architecture for short-range optical communications using advanced modulation schemes in deep submicron CMOS technology. A prototype design including a 270×270 μm2 integrated photodiode interfaced with an ultra-low impedance transimpedance amplifier (TIA) and a continuous time linear equalizer (CTLE) is simulated in IBM 0.13 μm CMOS technology. To demonstrate the flexibility of the proposed design, simulation results for both on-off-keying (OOK) and 64-QAM baseband orthogonal frequency division multiplexed (OFDM) data are presented. With 40 mW power dissipation from a 1.2 V supply and an estimated 15 pF photodiode capacitance, binary modulation data rate of 3.2 Gbps with a sensitivity of -6.7dBm (BER=10-12) is achieved in post layout simulations. In the multi carrier modulation scenario, the receiver achieves a multi-tone power ratio (MTPR) of 28 dBc maintaining 200mV peak-to-peak output voltage for an input signal peak-to-average ratio (PAR) of 4.8dB. The received constellation shows minimal scattering due to the amplifier non-linearity.
Year
DOI
Venue
2014
10.1109/ISCAS.2014.6865730
Circuits and Systems
Keywords
Field
DocType
CMOS integrated circuits,OFDM modulation,amplitude shift keying,equalisers,operational amplifiers,optical receivers,photodiodes,quadrature amplitude modulation,64-QAM,CMOS receiver front-end,CTLE,DMT-OFDM,OOK,binary modulation,bit rate 3.2 Gbit/s,capacitance 15 pF,continuous time linear equalizer,discrete multitone modulation,frequency 2.2 GHz,integrated photodiode,multicarrier modulation,multitone power ratio,on-off keying,orthogonal frequency division multiplexing,power 40 mW,short-range optical communication,size 0.13 mum,transimpedance amplifier,voltage 1.2 V,voltage 200 mV
Quadrature modulation,Baseband,Computer science,Modulation,Electronic engineering,Transimpedance amplifier,Optical modulation amplitude,Pulse-amplitude modulation,Electrical engineering,Phase-shift keying,Amplifier
Conference
Citations 
PageRank 
References 
0
0.34
1
Authors
2
Name
Order
Citations
PageRank
Sagar Ray112.04
Mona Hella2233.59