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A single chip QCELP vocoder for CDMA digital cellular

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6 Author(s)
McDonough, J. ; QUALCOMM Inc., San Diego, CA, USA ; Chienchung Chang ; Kantak, P. ; Sakamaki, C.
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This paper describes a full-custom ASIC implementation of the QCELP voice compression algorithm. Applications for the ASIC are code division multiple access (CDMA) based cellular, personal-communications-networks (PCN), and wireless local loop. The ASIC contains a custom DSP core, utilizing internal RAM and ROM and a co-processor, which were optimized to perform QCELP and related voice-band processing. Key design concerns were power consumption, area, flexibility, and testability

Published in:

Custom Integrated Circuits Conference, 1994., Proceedings of the IEEE 1994

Date of Conference:

1-4 May 1994