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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)： | 45/88頁(yè) |
| 文件大?。?/td> | 362K |
| 代理商： | TDA9870A |
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1998 Aug 10
45
Philips Semiconductors
Product specification
Digital TV Sound Processor (DTVSP)
TDA9870A
10.3.18 SCART 2
OUTPUT SELECT REGISTER
10.3.18.1 Description
This register is used to define both the signal source to be output at SCART 2 and the output channel selector mode.
10.3.18.2 Definition
Table 43
Subaddress 21 (note 1)
Notes
1.
2.
The default setting at power-up is 00000000.
See Table 46.
Table 44
Signal source
Table 45
Bits B5 and B4
Table 46
Description of bit SC2GAIN
MSB
LSB
B7
0
B6
B5
B4
B3
0
B2
B1
B0
SC2GAIN
(2)
see Table 45
see Table 44
B2
B1
B0
SIGNAL SOURCE
0
0
0
0
1
0
0
1
1
0
0
1
0
1
0
SCART 1 input
SCART 2 input
external input
mono input
DAC input
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
SC2GAIN
HIGH
Activates the 3 dB gain stage at the SCART 2 output buffers. As any SCART input
passes a 3 dB attenuator, this gain stage can be used to compensate that attenuation,
resulting in a 0 dB insertion loss when copying from SCART 1 input to SCART 2 output.
However, that gain must be used with great care, as it will cause signal clipping at high
input levels.
The audio signal will be output unchanged (0 dB gain).
LOW
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| TDA9873H | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Multistandard dual carrier stereo sound decoder |
| TDA9873HS | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Multistandard dual carrier stereo sound decoder |
| TDA9874A | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Digital TV sound demodulator/decoder |
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