Title :
A low power full accuracy MPEG1 audio layer III (MP3) decoder with on-chip data converters
Author :
Hong, Sekyoung ; Kim, Dalsoo ; Song, Minkyu
Author_Institution :
TLI Inc., Kyunggi, South Korea
fDate :
8/1/2000 12:00:00 AM
Abstract :
A low power full accuracy MPEG1 audio layer 3 (MP3) decoder with on-chip A/D converter (ADC) and D/A converter (DAC) is proposed. The chip is composed of a digital block to implement the MP3 decoding algorithm and voice compression/decompression algorithm, a 12-bit recycling type ADC, and an oversampling ΔΣ 1-bit DAC. In order to satisfy the full accuracy specification of the 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 μm CMOS technology and the chip area is about 6.4×6.7 mm2 with 165 mW power dissipation at 2.7 V power supply
Keywords :
CMOS digital integrated circuits; Hi-Fi equipment; analogue-digital conversion; audio coding; code standards; data compression; digital signal processing chips; digital-analogue conversion; telecommunication standards; 0.35 mum; 12 bit; 165 mW; 2.7 V; 32 bit; CMOS technology; MP3 decoding algorithm; MPEG1 audio layer III decoder; chip area; digital block; efficient power management; floating DSP core; full accuracy MP3 decoder; full accuracy specification; low power MP3 decoder; on-chip A/D converter; on-chip D/A converter; on-chip data converters; oversampling ΔΣ 1-bit DAC; portable applications; power consumption reduction; power dissipation; power supply; recycling type ADC; 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;
Journal_Title :
Consumer Electronics, IEEE Transactions on
