Title :
Computer-aided design of high data-rate QAM modem circuits
Author :
Kindsfater, Kenneth ; Leong, Andy ; Cohen, Etan ; Jain, Rajeev ; Samueli, Henry ; Caldwell, Maurice ; Parikh, Sandip ; Angle, Rod ; Mayweather, Bill
Author_Institution :
Electr. Eng. Dept., California Univ., Los Angeles, CA, USA
Abstract :
Computer-aided design tools for high-speed QAM (quadrature amplitude modulation) modems are being developed to allow system level simulation and IC design to be integrated in the same environment. Digital architectures for the modulation and demodulation filters are being exploited to develop functional compilers that allow the IC to be customized to system specifications while automating the architecture generation and layout generation. For example, programs have been developed to synthesize the required Nyquist filters from system specifications, generate the architecture using simulations to determine internal and I/O (input/output) wordlengths, and directly generate the layout using previously published optimization strategies to minimize the area and achieve baud rates as high as 50 MBd for 256-level QAM
Keywords :
application specific integrated circuits; circuit CAD; circuit layout CAD; digital filters; integrated circuit design; modems; program compilers; quadrature amplitude modulation; software tools; IC design; Nyquist filters; architecture generation; computer-aided design; demodulation filters; design tools; digital architectures; functional compilers; high-speed QAM; layout generation; modem circuits; modulation filters; optimization strategies; programs; quadrature amplitude modulation; system level simulation; system specifications; wordlengths; Computational modeling; Computer architecture; Computer simulation; Design automation; Digital modulation; Filters; High speed integrated circuits; Integrated circuit modeling; Modems; Quadrature amplitude modulation;
Conference_Titel :
Communications, 1993. ICC '93 Geneva. Technical Program, Conference Record, IEEE International Conference on
Conference_Location :
Geneva
Print_ISBN :
0-7803-0950-2
DOI :
10.1109/ICC.1993.397257