參數(shù)資料
型號(hào)： TDA9870A
廠(chǎng)商： NXP SEMICONDUCTORS
元件分類(lèi)： 消費(fèi)家電
英文描述： Digital TV Sound Processor DTVSP
中文描述： SPECIALTY CONSUMER CIRCUIT, PDIP64
封裝： SHRINK, PLASTIC, DIP
文件頁(yè)數(shù)： 46/88頁(yè)
文件大?。?/td> 362K
代理商： TDA9870A
1998 Aug 10
46
Philips Semiconductors
Product specification
Digital TV Sound Processor (DTVSP)
TDA9870A
10.3.19 L
INE OUTPUT SELECT REGISTER
10.3.19.1 Description
By definition, the line output conveys the same signal as the Main (loudspeaker) channel, but in a non-processed form.
This register is used to characterize the signal to be output at the line output and define the output channel selector mode.
10.3.19.2 Definition
Table 47
Subaddress 22 (note 1)
Note
1.
The default setting at power-up is 00000000.
Table 48
Bits B5 and B4
Table 49
Description of bits LINSEL and LINGAIN
BIT
NAME
LINGAIN
DESCRIPTION
7 (MSB)
6
5
4
3
2
1
0 (LSB)
set to logic 0
line output gain on/off; see Table 49
see Table 48
set to logic 0
set to logic 0
set to logic 0
LINSEL
select source for line output;
see Table 49
B5
B4
L OUTPUT
R OUTPUT
0
0
1
1
0
1
0
1
L input
L input
R input
R input
R input
L input
R input
L input
NAME
HIGH/LOW
FUNCTION
LINSEL
HIGH
Specifies that a signal from an analog source is being processed in the Main channel.
Analog signal sources comprise SCART 1 input, SCART 2 input, external input and
mono input, i.e. any input to the ADC.
Specifies that a signal from a digital source is being processed in the Main channel.
Digital signal sources comprise FM, I
2
S1 input and I
2
S2 input.
Activates the 3 dB gain stage at the line output buffers.
The audio signal will be output unchanged (0 dB gain).
LOW
LINGAIN
HIGH
LOW
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