M65863FP 데이터 시트보기 (PDF) - MITSUBISHI ELECTRIC
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M65863FP Datasheet PDF : 61 Pages
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Product Note
April 1998
Chapter 1
Features
M65863FP
Dolby Digital Decoder
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)
Analog
IEC958
ADC
DIR
M65863FP
IEC958
DAC
I2C/Clocked serial
MCU
DSP
Figure 1.1 M65863FP Configuration Diagram (DIR I/F)
*1 Dolby, Dolby Digital (AC-3), and Pro Logic are registered trademarks of Dolby Laboratories Licensing Corp.
Available only to licensees of Dolby Laboratories Licensing Corporation, San Francisco, CA 94111, USA, (415) 558-
0200, from whom licensing and application information must be obtained.
*2 Phillips Semiconductors, "I2C bus specification",January,1992
MITSUBISHI ELECTRIC CORPORATION
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