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参数资料
| 型号： | TDA9874APS/V2 |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 接收器 |
| 英文描述： | AM/FM, AUDIO DEMODULATOR, PDIP42 |
| 封装： | 0.600 INCH, PLASTIC, SDIP-42 |
| 文件页数： | 17/71页 |
| 文件大小： | 304K |
| 代理商： | TDA9874APS/V2 |
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2000 Aug 04
24
Philips Semiconductors
Product specication
Digital TV sound demodulator/decoder
TDA9874A
7.3.4
MONITOR SELECT REGISTER (MSR)
This register is used to define the signal source (the level of which is to be monitored) and the signal channel. Data can
be monitored e.g. before or after the DC filter at the FM/AM demodulator outputs. The peak level of signals can also be
observed. The last available data sample can be read out in the I2C-bus slave transmitter mode (see Section 7.4.5).
Phase means the differentiated phase output of the FM demodulator and is provided when the demodulator operates in
FM mode. The magnitude is supplied in AM mode.
The default setting after Power-on reset is 0000 0000.
Table 17 Monitor select register (subaddress 2)
Table 18 Description of the monitor select register bits
Table 19 Signal channel selection
Table 20 Signal source selection
76543210
PEAK
0
MCSM1
MCSM0
0
MSS1
MSS0
BIT
SYMBOL
DESCRIPTION
7
PEAK
Peak level select: if bit PEAK = 1 it selects the rectied peak level of a source to be
monitored. Peak level value is reset to logic 0 after read-out (see read registers
5 and 6). After changing the monitor signal source for peak calculation it is advisable to
ignore the first read-out value due to stored data from previous calculations.
6
these bits are not used and should be set to logic 0
5
4
MCSM1
Signal channel select: the state of these bits determine which signal channel is
selected; see Table 19.
3
MCSM0
2
this bit is not used and should be set to logic 0
1
MSS1
Signal source select: the state of these bits determine which signal source is selected;
see Table 20.
0
MSS0
MCSM1
MCSM0
SIGNAL CHANNEL
00
0
1
CH1
1
0
CH2
MSS1
MSS0
SIGNAL SOURCE
0
DC output of FM/AM demodulator
0
1
magnitude/phase output of FM/AM demodulator
1
0
FM/AM path output
1
NICAM path output
CH1
CH2
+
2
------------------------------
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| TDA9874AH/V2 | AM/FM, AUDIO DEMODULATOR, PQFP44 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA9874H | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Digital TV sound demodulator/decoder |
| TDA9875 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Digital TV Sound Processor DTVSP |
| TDA9875A | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Digital TV Sound Processor DTVSP |
| TDA9875AH | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Digital TV Sound Processor DTVSP |
| TDA9875AH/V2,557 | 功能描述:IC SOUND PROC DGTL TV 64QFP RoHS:是 类别:集成电路 (IC) >> 线性 - 音频处理 系列:- 其它有关文件:STA321 View All Specifications 标准包装:1 系列:Sound Terminal™ 类型:音频处理器 应用:数字音频 安装类型:表面贴装 封装/外壳:64-LQFP 裸露焊盘 供应商设备封装:64-LQFP EP（10x10） 包装:Digi-Reel® 其它名称:497-11050-6 |
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