Title :
A full accuracy MPEG1 audio layer 3 (MP3) decoder with internal data converters
Author :
Hong, Sekyoung ; Park, Byungcheol ; Seo, Hangyo ; Hangyo See ; Jonghyun Kim ; Lee, Hyungjong ; Dalsoo Kim ; Minkyu Song
Author_Institution :
TLI Inc., Kyunggi, South Korea
Abstract :
A full accuracy MPEG1 audio layer 3 (MP3) decoder with internal A/D converter and D/A converter is proposed. The chip is composed of a digital block to implement MP3 decoding and voice compression/decompression algorithm, a 12-bit recycling type A/D converter, and an oversampling ΔΣ 1-bit D/A converter. In order to satisfy the full accuracy specification of MP3 decoder, a novel 32-bit floating DSP core is proposed. Further, an efficient power management technique is implemented to reduce power consumption for portable applications. The proposed decoder has been fabricated with a 4 metal 0.35 um CMOS technology and the chip area is about 6.4x6.7 mm2 with 165 mW power dissipation at 2.7 V power supply
Keywords :
CMOS digital integrated circuits; audio signal processing; data compression; data conversion; decoding; digital signal processing chips; low-power electronics; 0.35 micron; 1 bit; 12 bit; 165 mW; 2.7 V; 32 bit; CMOS technology; MP3; MPEG1 audio layer 3; decoder; delta-sigma D/A converter; floating DSP core; full accuracy specification; internal data converters; portable applications; power consumption; power dissipation; power management technique; recycling type A/D converter; voice compression/decompression algorithm; CMOS technology; Decoding; Digital audio players; Digital signal processing chips; Energy consumption; Energy management; Power dissipation; Power supplies; Recycling; Transform coding;
Conference_Titel :
Custom Integrated Circuits Conference, 2000. CICC. Proceedings of the IEEE 2000
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-5809-0
DOI :
10.1109/CICC.2000.852731
