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參數(shù)資料
| 型號(hào)： | TDA9870A |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 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 |
| 文件頁數(shù)： | 34/88頁 |
| 文件大?。?/td> | 362K |
| 代理商： | TDA9870A |
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1998 Aug 10
34
Philips Semiconductors
Product specification
Digital TV Sound Processor (DTVSP)
TDA9870A
10.3.3
M
ONITOR SELECT REGISTER
10.3.3.1
Description
This register is used to define the signal source, the level of which is to be monitored, and if the peak level is to be
monitored. Peak level refers to the magnitude of the maximum excursion of a signal. Data can be read-out in the I
2
C-bus
slave transmitter mode (see Section 10.4, subaddresses 5 and 6).
Audio magnitude/phase is related to the FM demodulator output. Phase information is provided, when it operates in
FM mode, while magnitude is supplied in AM mode.
Table 17
Description of bit PEAKMON
10.3.3.2
Definition
Table 18
Subaddress 2 (note 1)
Note
1.
The default setting at power-up is 00000000.
Table 19
Signal source (note 1)
Note
1.
The term ‘crossbar’ refers to the digital selector, where level-adjusted signals from various sources are available.
NAME
HIGH/LOW
FUNCTION
PEAKMON
HIGH
LOW
selects the peak level of a source to be monitored
the last sample will be supplied
MSB
LSB
B7
B6
0
B5
0
B4
B3
B2
B1
B0
PEAKMON
see Table 20
see Table 19
B2
B1
B0
SIGNAL SOURCE
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
DC output of FM demodulator
audio magnitude/phase, FM demodulator output
crossbar input from FM/AM channel
don’t care
crossbar input from I
2
S1 channel
crossbar input from I
2
S2 channel
crossbar input from audio ADC channel
input to Main channel DAC (without beeper)
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相關(guān)代理商/技術(shù)參數(shù) |
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| TDA9873 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard dual carrier stereo sound decoder |
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| TDA9873HS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard dual carrier stereo sound decoder |
| TDA9874A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV sound demodulator/decoder |
| TDA9874AH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV sound demodulator/decoder |
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