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A low power MPEG I/II layer 3 audio decoder

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8 Author(s)
Nam, S.J. ; System IC, Hyundai Electron. Inc., Seoul, South Korea ; Kim, B.H. ; Im, C.D. ; Kim, J.B.
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This paper describes a low power MPEG audio decoder called GENIE, which implements the full ISO/IEC 11172-3 layer 3 standard. To reduce the power consumption, we have applied tight task-based clock supervision and developed novel design schemes for Huffman decoding and equalizer. Using these approaches, GENIE can consume at most 18 mW at 14 MHz operating frequency and 1.8 V supply voltage, and this low power consumption is acceptable to the portable application. These schemes lead to a power reduction of 55% compared to other MPEG layer 3 audio decoders. GENIE was verified by simulation using the ISO/IEC 11172-4 compliance vectors and by FPGA (Field Programmable Gate Array) prototyping using real MP3 music bit streams

Published in:

Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on  (Volume:2 )

Date of Conference:

6-9 May 2001