DocumentCode
516700
Title
A Single-Chip GSM Vocoder with Analog Frontend
Author
Karema, Teppo ; Ofner, Erwin
Author_Institution
Austria Mikro Systeme International AG, SchloÃ\x9f Premstÿtten, A-8141 Unterpremstÿtten, Austria. Tel. +43-3136-5000 Fax +43-3136-500491
fYear
1994
fDate
20-22 Sept. 1994
Firstpage
132
Lastpage
135
Abstract
A single chip full rate GSM vocoder designed in 1¿m CMOS process is presented. It integrates an analog frontend, an oversampled 13-bit linear codec with filters, a tone generator, interfacing logic and a RISC signal processor core preprogrammed for the RPE/LTP transcoding function as defined in the GSM recommendations. The chip operates from a single 5V supply and achieves very low power consumption by highly optimized usage of analog and digital signal processing techniques.
Keywords
CMOS logic circuits; CMOS process; Codecs; GSM; Nonlinear filters; Reduced instruction set computing; Signal generators; Signal processing; Transcoding; Vocoders;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 1994. ESSCIRC '94. Twentieth European
Conference_Location
Ulm, Germany
Print_ISBN
2-86332-160-9
Type
conf
Filename
5468538
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