MPEG2 video decoder and AC-3 audio decoder LSIs for DVD player

We have developed the MPEG2 video decoder and the AC-3 audio decoder LSIs for DVD players. These decoder LSIs together with single 16Mbit SDRAM and D/A converters realize the audio/video processing unit with the world-least number of components for DVD players. The video decoder LSI employs the RISC controller to control the dedicated processing cores and a design to integrate the frame memory and bitstream buffers into single external memory. The audio decoder LSI adopts the 24bit fixed point DSP core and the dedicated AC-3 accelerator circuit and so on to reduce the software processing amount in AC-3 audio decoding.