Title :
A compact and power efficient GSM vocoder
Author :
Vanzieleghem, E. ; Schelfhout, K. ; Dartois, L. ; Wenin, J. ; Vanwelsenaers, A. ; Rabaey, D.H.
Author_Institution :
Alcatel Bell Telephone, Antwerp, Belgium
Abstract :
A single-chip implementation of the GSM full-rate vocoder is presented. Maximum integration has been achieved by the use of DSP (digital signal processing) CORE technology. All aspects of this design methodology are described. This component is one of the key building blocks of the ALCATEL GSM handportable station. This chip is designed in a shrinkable 1.2 μm CMOS process resulting in a 85 mm2 die size. The efficiency of the DSP CORE methodology (size, signal processing time, and design productivity) for implementation of complex processing functions like GSM vocoder or digital demodulation has been demonstrated
Keywords :
CMOS logic circuits; boundary scan testing; cellular radio; computational complexity; digital signal processing chips; integrated circuit design; logic CAD; mobile radio; speech coding; vocoders; 1.2 micron; ALCATEL GSM handportable station; CMOS process; DSP CORE methodology; GSM full-rate vocoder; chip; design methodology; design productivity; digital demodulation; digital signal processing; efficiency; signal processing time; CMOS process; CMOS technology; Demodulation; Design methodology; Digital signal processing chips; GSM; Process design; Productivity; Signal design; Vocoders;
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.1993.397258
