Low power full accuracy MPEG1 Audio Layer III (MP3) decoder with on-chip data converters

被引：1
|
作者：
Hong, S [1 ]
Kim, D
Song, M
机构：
[1] TLI Inc, Bundang Gu, Kyunggi Do, South Korea
[2] Dongguk Univ, Dept Semicond Sci, Seoul, South Korea
来源：
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS | 2000年 / 46卷 / 03期
关键词：
Algorithms - Audio equipment - Data compression - Delta sigma modulation - Digital signal processing - Digital to analog conversion - Energy conservation - Energy dissipation - Energy management - Energy utilization - Microprocessor chips - Speech processing;
D O I：
10.1109/30.883470
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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 MP3 decoding algorithm and voice compression/decompression algorithm, a 12-bit recycling type ADC, and an oversampling Delta Sigma 1-bit DAC. 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 0.35um CMOS technology and the chip area is about 6.4x6.7 mm(2) with 165mW power dissipation at 2.7V power supply.
引用
收藏
页码：903 / 906
页数：4
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