This Audio Decoder for Dolby Digital (AC-3)*1 M65863FP is a single device. The device decodes AC-3 bitstreams into PCM audio. Dolby Digital (AC-3) is a multi-channel audio coding algorithm developed by Dolby Laboratories, Inc.

? Decoding

1) 5.1 ch AC-3 bitstream

2) Dolby Pro Logic*1 encoded 2ch Dolby Digital (AC-3) bitstream

3) Dolby Pro Logic encoded 2ch PCM data

? All input combinations from 1 to 5.1 channels

? Output : mono 5.1 surround

? Sampling rates : 32kHz, 44.1 kHz, 48 kHz and 96 kHz (96 kHz is for linear PCM only)

? Supports a maximum bit rate of 640 kbps at a full service (up to 448 kbps when 32 kHz sampling rates)

? 2 DIR (Digital Audio Interface Receiver)/ADC input interfaces

? Serial input bitstream interface for DEMUX

? PCM output interface

Standard 3-wire DAC output interface (data,clock,LR clock), 16/18/20/24 bit DAC word size

? Supports IEC958 digital audio output for Dolby Digital (AC-3) data stream

? I2C*2 interface and clocked serial (4 line) interface for host microcontroller

? Generates audio test noise

? 2nd DSP I/F (twice higher PCM transfer rate)

? Controllable dynamic range compression

? Programmable center and surround channel delays

? Dialogue level control

? No external memory required (M65863FP doos not have memory space for surround delay)