Design and VLSI implementation of a digital audio-specific DSP core for MP3/AAC

In this paper, a digital audio-specific DSP core designed for a dual MP3/AAC decoder is presented. The processing core is a 20-bit fixed-point programmable DSP having an architecture suitable for audio signal processing. It supports special instructions like UNPACK, HUFFMAN as well as general arithm...

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Bibliographic Details
Main Authors: Kyoung Ho Bang, Nam Hun Jeong, Joon Seok Kim, Young Cheol Park, Dae Hee Youn
Format: Conference Proceeding
Language:English
Subjects:
Algorithm design and analysis
Applied sciences
Arithmetic
CMOS technology
Coding, codes
Data processing
Decoding
Digital audio players
Digital signal processing
Electronics
Exact sciences and technology
Hardware
Information, signal and communications theory
Integrated circuits
Integrated circuits by function (including memories and processors)
Miscellaneous
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Signal and communications theory
Signal processing
Signal processing algorithms
Telecommunications and information theory
Very large scale integration
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Summary:In this paper, a digital audio-specific DSP core designed for a dual MP3/AAC decoder is presented. The processing core is a 20-bit fixed-point programmable DSP having an architecture suitable for audio signal processing. It supports special instructions like UNPACK, HUFFMAN as well as general arithmetic and logical instructions including pipelined-MAC. All instructions are completed within a single cycle. The DSP core is realized in a 0.35 /spl mu/m 3.3 V CMOS technology and operates at 40 MHz. The implemented DSP core with a dedicated hardware accelerator can decode MP3 using only 13.33 MIPS and AAC using only 16.9 MIPS with high efficiency.
DOI:10.1109/ICCE.2002.1014001