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ST18-AU1

ST Microelectronics
Part Number ST18-AU1
Manufacturer ST Microelectronics
Description SIX-CHANNEL DOLBY AC3/MPEG2 AUDIO DECODER
Published Oct 23, 2005
Detailed Description ST18-AU1 SIX-CHANNEL DOLBY AC3/MPEG2 AUDIO DECODER PRELIMINARY DATA FEATURES s Single chip multi-function audio decode...
Datasheet PDF File ST18-AU1 PDF File

ST18-AU1
ST18-AU1

Overview
ST18-AU1 SIX-CHANNEL DOLBY AC3/MPEG2 AUDIO DECODER PRELIMINARY DATA FEATURES s Single chip multi-function audio decoder able to decompress DOLBY AC-3, MPEG-1 and MPEG-2 audio streams.
Maximum 5.
1 channel DOLBY AC-3 decoding to 2 channel mixed down output with DOLBY surround compatible or karaoke capable option.
Variable bit rate MPEG-1 layer II audio decoding, and MPEG-2 multi-channel audio decoding for karaoke capable application.
Input data rates s s s Interrupt controller DMA controller Emulation unit and TAP s s up to 448 Kbits/s for AC-3 decoder up to 912 Kbits/s for MPEG-1 or MPEG-2 audio decoder Clocks and timers D950 DSP core I2C Host interface 24K Data memory 16K Program memory s Supports up to 8 channel DVD linear PCM input at max rate of 6.
144 Mbits/s down-mixing and/ or sub-sampling to 2 to 6 channels.
Accepts MPEG-1 or DVD/MPEG-2 PES input packets.
Programmable D950 core System time clock provides A/V synchronization and PTS packet extraction.
Automatic error concealment on CRC or synchronization error.
6 channel PCM audio output at 16/18/20/24 bit.
Sampling rate of 32/44.
1/48/96 kHz.
Two on-chip PLLs providing full circuit operation with only one external 27 MHz clock.
I2C interface for host control Multi-format i2S serial data input port and decoded audio PCM output port.
IEC-958 (S/PDIF) formatter and transmitter for DOLBY AC-3, MPEG audio bit stream, or audio PCM.
Dedicated hardware for emulation and test, IEEE 1149.
1 (JTAG).
3.
3V power supply, I/O’s 5V tolerant, 0.
35µM HCMOS6 technology.
160 pin PQFP package s Bus switch unit s s s 2 Input serial interface IEC-958 (S/PDIF) output 3 Output serial interface s s s s APPLICATIONS s s s s Digital video disc (DVD) player Digital TV (DBS/DVB) receiver PC multimedia Consumer digital audio s s s s February 98 42 1726 00 This is preliminary information on a product in development or undergoing evaluation.
Details are subject to change without notice.
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