參數(shù)資料
型號： SAA2502
廠商： NXP Semiconductors N.V.
英文描述： ISO/MPEG Audio Source Decoder
中文描述： 的ISO / MPEG音頻信源解碼器
文件頁數(shù)： 35/64頁
文件大?。?/td> 318K
代理商： SAA2502
1997 Nov 17
35
Philips Semiconductors
Preliminary specification
ISO/MPEG Audio Source Decoder
SAA2502
Table 30
Explanation of bits in Table 29
Notes
1.
2.
Default settings (settings value after a hard reset).
The SAA2502 can only decode one of the dual channels, at a time. Both left and right audio outputs then play the
selected channel.
Table 31
Sampling rate and bit rate: 1 byte (write-only, unrestricted type, local address = 1BH)
Table 32
Soft reset: 1 byte (write-only, unrestricted type, local address = 1EH)
BIT
DESCRIPTION
SYMOD1 and SYMOD0
audio frame synchronization mode:
00
(1)
: general non-byte aligned frame synchronization
01: MPEG layer II non-byte aligned frame synchronization
10: byte aligned frame synchronization
11: sync pulse frame synchronization
input interface mode of operation:
00
(1)
: master input mode for static bit rates
01: slave input mode for static bit rates
10: buffer controlled input mode for static bit rates
11: buffer controlled input mode for variable bit rates
enable stop requesting flag:
0
(1)
: input requesting continues when STOP = logic 1
1: input requesting stops when STOP = logic 1
CRC presence:
0
(1)
: protection bit in the MPEG frame header is used to determine CRC presence
1: CRC is assumed be present by definition (the protection bit is overruled)
dual channel mode channel select (with other modes of input data = don’t care):
0
(1)
: select channel I
1: select channel II
enable scale factor CRC protection:
0
(1)
: no scale factor protection
1: scale factor CRC protection enabled
INMOD1 and INMOD0
STOPRQ
CRCACT
SELCH2
(2)
SFCRC
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SFX2
SFX1
SFX0
BRX4
BRX3
BRX2
BRX1
BRX0
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
0
0
0
0
0
0
0
0
相關(guān)PDF資料
PDF描述
SAA2502H ISO/MPEG Audio Source Decoder
SAA2503 MPEG2 audio decoder(MPEG2 音頻譯碼器)
SAA2503HT MPEG2 audio decoder
SAA2505H-M1 Digital multi-channel audio IC DUET
SAA2505 Digital multi-channel audio IC DUET
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA2502H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ISO/MPEG Audio Source Decoder
SAA2503 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:MPEG2 audio decoder
SAA2503HT 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:MPEG2 audio decoder
SAA2505 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital multi-channel audio IC DUET
SAA2505H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital multi-channel audio IC DUET
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