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An MPEG-2 AAC Encoder Chip Design Operating under 70MIPS  

Kang Hee-Chul (Dept., of Electronic Engineering Pusan National University)
Park Ju-Sung (Dept., of Electronic Engineering Pusan National University)
Jung Kab-Ju (Dept., of Electronic Engineering Pusan National University)
Park Jong-In (Kumyoung Technology Research Institute)
Choi Byung-Gab (Dept., of Digital Information Electronics, Incheon City College)
Kim Tae-Hoon (Voiso Semiconductor Co.)
Kim Sung-Woo (Defense Quality Assurance Agency)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SD / v.42, no.4, 2005 , pp. 61-68 More about this Journal
Abstract
A chip, which can fast encoder the audio data to AAC (Advanced Audio Coding) LC(Low Complexity) that is MPEG-2 audio standard, has been designed on the basis of a 32 bits DSP core and fabricated with 0.25um CMOS technology. At first, the various optimization methods for implementing the algerian are devised to reduce the memory size and calculation cycles. FFT(Fast Fourier Transform) hardware block is added to the DSP core to get the more reduction of the calculation cycles. The chips has the size of $7.20\times7.20 mm^2$ and about 830,000 equivalent gates, can carry out AAC encoding under 70MIPS(Million Instructions per Second).
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