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參數資料
型號: 935263704518
廠商: NXP SEMICONDUCTORS
元件分類: 接收器
英文描述: AM/FM, AUDIO DEMODULATOR, PQFP44
封裝: PLASTIC, QFP-44
文件頁數: 30/71頁
文件大小: 304K
代理商: 935263704518
2000 Aug 04
36
Philips Semiconductors
Product specication
Digital TV sound demodulator/decoder
TDA9874A
Table 49 Analog output select register (subaddress 20)
Table 50 Description of the analog output select register bits
Table 51 Output channel selection mode for stereo output (bit TVSM = 0)
Table 52 Signal source selection analog mono output
Table 53 Signal source selection stereo output
76543210
TVSM
CSM2
CSM1
CSM0
MOS1
MOS0
SSS1
SSS0
BIT
SYMBOL
DESCRIPTION
7
TVSM
Auto-select function: for TV applications, only in combination with bit IDSWFM = 1. If set
to logic 1, it switches the matrix automatically depending on bits IDSTE and IDDUA for
FM and the bits S/MB, D/SB for NICAM (see Sections 7.4.1 and 7.4.2).
6
CSM2
Output channel selection mode, stereo output: these bits select the output channel
selection mode; see Table 51
5
CSM1
4
CSM0
3
MOS1
Signal source for mono output: these bits select the signal source for the mono output;
see Table 52
2
MOS0
1
SSS1
Signal source for stereo output: these bits select the signal source for the stereo output;
see Table 53
0
SSS0
CSM2
CSM1
CSM0
L OUTPUT
R OUTPUT
REMARK
0
L input
R input
0
1
L input
0
1
0
R input
0
1
R input
L input
1
0
not allowed during use of high
deviation mode
MOS1
MOS0
SIGNAL SOURCE
0
mono DAC
0
1
external input L
1
0
external input R
1
mono input
SSS1
SSS0
SIGNAL SOURCE
00
DAC
0
1
reserved
1
0
external input
1
mono input
L input
R input
+
2
-------------------------------------------
L input
R input
+
2
-------------------------------------------
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