參數(shù)資料
型號: SAA2501
廠商: NXP Semiconductors N.V.
英文描述: Digital Audio Broadcast DAB decoder
中文描述: 數(shù)字音頻廣播民建聯(lián)的解碼器
文件頁數(shù): 28/52頁
文件大?。?/td> 206K
代理商: SAA2501
January 1995
28
Philips Semiconductors
Preliminary specification
Digital Audio Broadcast (DAB) decoder
SAA2501
7.20.7
SAA2501
SETTINGS ITEM
The SAA2501 is configured with the SAA2501 settings. The initial value of the SAA2501 settings after reset is all zeros.
Table 21
SAA2501 settings item; 1 byte (read/write)
Notes
1.
MSEL1 and MSEL0; these bits select the used input interface, the input data format and the input synchronization
type (see Table 22).
CRCACT; automatic/forced CRC activity:
a) CRCACT = 0; the SAA2501 uses the protection bit in the ISO/MPEG frame header to determine the presence of
the CRC.
b) CRCACT = 1; the SAA2501 assumes the CRC always to be present. The protection bit in the used ISO/MPEG
frame header is forced to 0.
MCKDIS; buffered master clock MCLK disabling:
a) MCKDIS = 0; enable MCLK.
b) MCKDIS = 1; disable (3-state) MCLK.
2.
3.
4.
FCKENA; buffered 256f
s
or 384f
s
output signal FSCLK enabling:
a) FCKENA = 0; disable (3-sate) FSCLK.
b) FCKENA = 1; enable FSCLK.
SELCH2; with dual channel mode input data (with other modes of input data ‘don’t care’:
a) SELCH2 = 0; select channel I.
b) SELCH2 = 1; select channel II.
RND1 and RND0; these bits select the rounding of the baseband audio output samples (see Table 23).
5.
6.
Table 22
MSEL1 and MSEL0
Table 23
RND1 and RND0
7
6
5
4
3
2
1
0
MSEL1
(1)
MSEL0
(1)
CRCACT
(2)
MCKDIS
(3)
FCKENA
(4)
SELCH2
(5)
RND1
(6)
RND0
(6)
MSEL1
MSEL0
USED INPUT INTERFACE
INPUT SYNCHRONIZATION
0
0
1
1
0
1
0
1
master
EU147
slave
slave
to ISO/MPEG synchronization pattern
to synchronization signal CDSSY
to ISO/MPEG synchronization pattern
to synchronization signal CDSSY
RND1
RND0
OUTPUT SAMPLE ROUNDING LENGTH
0
0
1
1
0
1
0
1
16 bits
18 bits
20 bits
22 bits
相關(guān)PDF資料
PDF描述
SAA2501H Digital Audio Broadcast DAB decoder
SAA2502 ISO/MPEG Audio Source Decoder
SAA2502H ISO/MPEG Audio Source Decoder
SAA2503 MPEG2 audio decoder(MPEG2 音頻譯碼器)
SAA2503HT MPEG2 audio decoder
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA2501H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital Audio Broadcast DAB decoder
SAA2501HB-S 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital Audio Decoder & Support
SAA2502 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ISO/MPEG Audio Source Decoder
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