Title :
Design and VLSI implementation of a digital audio-specific DSP core for MP3/AAC
Author :
Kyoung Ho Bang ; Nam Hun Jeong ; Joon Seok Kim ; Young Cheol Park ; Dae Hee Youn
Author_Institution :
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
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.
Keywords :
CMOS digital integrated circuits; Huffman codes; VLSI; audio coding; data compression; decoding; digital signal processing chips; fixed point arithmetic; pipeline arithmetic; 0.35 micron; 13.33 MIPS; 16.9 MIPS; 20 bit; 3.3 V; 40 MHz; CMOS technology; DSP core; HUFFMAN; UNPACK; VLSI; arithmetic instructions; audio signal processing; digital audio; dual MP3 AAC decoder; fixed-point programmable DSP; hardware accelerator; logical instructions; pipelined MAC; Algorithm design and analysis; Arithmetic; CMOS technology; Data processing; Decoding; Digital audio players; Digital signal processing; Hardware; Signal processing algorithms; Very large scale integration;
Conference_Titel :
Consumer Electronics, 2002. ICCE. 2002 Digest of Technical Papers. International Conference on
Conference_Location :
Los Angeles, CA, USA
Print_ISBN :
0-7803-7300-6
DOI :
10.1109/ICCE.2002.1014001
