A Low Power MPEG-1/2 Audio Decoer IP Core
Ziyuan Zhu · Electronics & Packaging · 2008
This paper presents a reusable, portable, low cost and low power MPEG-1/2 layer Ⅰ/Ⅱ/Ⅲde- coder IP core. The IP core consists of software core and hardware core. By the corporation between the two parts, they can real-timely decode MPEG-1/2 layer Ⅰ/Ⅱ/Ⅲ audio bit stream at a very low clock frequency. And the IP core is a totally full compliance MPEG audio decoder for providing 6.089 6×10-8 RMS level. In the case decoding a random 128 kbps/44.1 kHz MPEG-1/2 layer Ⅰ/Ⅱ/Ⅲ real-timely, the hardware-core works at 5.644 8 MHz while software-core works at 8MHz. And its die size is 1520μm×1280μm including on-chip SRAM and ROM.