Title :
A 64/256 QAM receiver chip for high-speed communications
Author :
Shin, DaeKyo ; Park, Ki Hyuk ; Sunwoo, Myung H.
Abstract :
This paper presents the implementation of a 64/256 QAM receiver chip for high-speed multimedia data communication that supports DOCSIS (Data Over Cable Service Interface Specification) of MCNs (Multimedia Cable Network System). The implemented architecture consists of the upstream unit and the downstream unit that includes the demodulator symbol timing recovery, carrier recovery and a DFE equalizer. The equalizer uses MMA (Multi-Modulus Algorithm). The 64/256 QAM receiver can support high-speed data rate up to 64 Mbps and can also provide the symbol rate up to 8 Mband which is faster than that of existing QAM receivers. We have used the 0.35 μm standard cell library. The total number of gates is about 210000 and the implemented 64/256 QAM receiver chip is currently being fabricated with delivery expected soon
Keywords :
CMOS digital integrated circuits; adaptive signal processing; application specific integrated circuits; blind equalisers; decision feedback equalisers; digital communication; digital signal processing chips; error statistics; modems; multimedia communication; quadrature amplitude modulation; receivers; synchronisation; 0.35 micron; 64 Mbit/s; 64/256 QAM receiver chip; ASIC; DFE equalizer; DOCSIS support; Data Over Cable Service Interface Specification; MMA; carrier recovery; demodulator symbol timing recovery; downstream unit; high-speed communications; modem application; multi-modulus algorithm; multimedia cable network system; multimedia data communication; standard cell library; upstream unit; Bandwidth; Communication cables; Data communication; Decision feedback equalizers; Demodulation; Libraries; Multimedia communication; Multimedia systems; Quadrature amplitude modulation; Timing;
Conference_Titel :
ASIC/SOC Conference, 2000. Proceedings. 13th Annual IEEE International
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-6598-4
DOI :
10.1109/ASIC.2000.880704
