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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： | 41/71页 |
| 文件大小： | 304K |
| 代理商： | TDA9874APS/V2 |
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2000 Aug 04
46
Philips Semiconductors
Product specication
Digital TV sound demodulator/decoder
TDA9874A
7.4.2
NICAM STATUS REGISTER (NSR)
Table 75 NICAM status register (subaddress 1)
Table 76 Description of the NICAM status register bits; notes 1 and 2
Notes
1. The TDA9874A does not support the extended control modes. Therefore, the program of the first sound carrier
(i.e. FM mono or AM) is selected for reproduction in case bit C3 is set to logic 1, independent of bit AMUTE in the
NICAM configuration register being set or not.
2. When a NICAM transmitter is switched off, the device will lose synchronization. In that case the program of the first
sound carrier is selected for reproduction, independent of bit AMUTE being set or not.
7.4.3
NICAM ERROR COUNT REGISTER (NECR)
Bits B7 to B0 contain the number of errors occurring in the previous 128 ms period. The register is updated every
128 ms.
Table 77 NICAM error count register (subaddress 2)
76543210
C4
C3
C2
C1
OSB
CFC
S/MB
D/SB
BIT
SYMBOL
DESCRIPTION
7
C4
NICAM application control bits: these bits correspond to the control bits C1 to C4 in the
NICAM transmission.
6C3
5C2
4C1
3
OSB
Synchronization bit: if bit OSB = 1 it indicates that the device has both frame and C0
(16 frame) synchronization. If bit OSB = 0 it indicates that the audio output from the
NICAM part is digital silence.
2
CFC
Conguration change: if bit CFC = 1 it indicates a conguration change at the 16 frame
(C0) boundary.
1
S/MB
Identication of NICAM stereo: if bit S/MB = 1 it indicates stereo mode.
0
D/SB
Identication of NICAM dual mono: if bit D/SB = 1 it indicates dual mono mode.
76543210
B7
B6
B5
B4
B3
B2
B1
B0
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| TDA9874AH/V2 | AM/FM, AUDIO DEMODULATOR, PQFP44 |
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| TDA3653C/N2 | VERTICAL DEFLECTION IC, PSIP9 |
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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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