- 您现在的位置：买卖IC网 > PDF目录85413 > TDA9874APS/V2 (NXP SEMICONDUCTORS) AM/FM, AUDIO DEMODULATOR, PDIP42 PDF资料下载
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： | 29/71页 |
| 文件大小： | 304K |
| 代理商： | TDA9874APS/V2 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页当前第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页
2000 Aug 04
35
Philips Semiconductors
Product specication
Digital TV sound demodulator/decoder
TDA9874A
7.3.17
STEREO DAC OUTPUT SELECT REGISTER
(SDACOSR)
This register is used to define the signal source to be
entered into the DAC. The stereo DAC output can be
routed to the analog stereo output pins, depending on the
setting in the AOSR; see Section 7.3.18.
A simplified setting is possible, if automatic FM dematrix
switching (see Section 7.3.9) and auto-select is applied.
The two combinations of FM and NICAM shown in
Table 48 apply to the (rare) condition that three different
languages are being broadcast in an FM + NICAM system.
They allow for a two-out-of-three selection for special
applications. It should be noted that the controlling
microprocessor has to assure that the FM dematrix is set
to the mono position or that bit IDSWFM is set to logic 1.
An additional Automatic Volume Level (AVL) control
function is implemented, which provides a constant output
level of
23 dB (full-scale) for input levels between 0 and
29 dB (full-scale). There are some fixed decay time
constants to choose from, i.e. 2, 4 or 8 s.
The automatic stereo DAC switching, operating similar to
the mono DAC switching, is shown in Table 54.
The default setting after Power-on reset is 0000 0000.
Bits 2 and 6 are not used and should be set to logic 0.
Table 45 Stereo DAC output select register
(subaddress 19)
Table 46 Selection of stereo DAC gain
Table 47 AVL control mode
The AVL attack time is always 10 ms.
Table 48 Signal source left and right
The auto-select function is available only if bits SDOS1
and SDOS0 are set to logic 00 or 01. Matrixing can be set
in the analog output select register.
7.3.18
ANALOG OUTPUT SELECT REGISTER (AOSR)
This register is used to define both the signal source to be
output at the analog outputs and the output channel
selector mode.
The DAC outputs are automatically muted in the event that
one of the analog inputs is selected for output.
The
position of the matrix applies only to the DAC
outputs, it is not available for analog input signals.
The default setting after Power-on reset is 0000 0000.
76
5
4
321
0
SDGS1 0
AVL
1
AVL
0
SDGS0 0 SDOS1 SDOS0
SDGS1
SDGS0
DAC GAIN
(dB)
00
0
01
3
10
6
11
9
AVL1
AVL0
AVL MODE
0
off or reset
0
1
short decay (2 s)
1
0
medium decay (4 s)
1
long decay (8 s)
SDOS1
SDOS0
SIGNAL SOURCE STEREO
DAC
LEFT
RIGHT
0
FM/AM
0
1
NICAM left
NICAM right
1
0
FM/AM
NICAM M1
1
FM/AM
NICAM M2
LR
+
2
--------------
相关PDF资料 |
PDF描述 |
|---|---|
| TDA9874AH/V2 | AM/FM, AUDIO DEMODULATOR, PQFP44 |
| TDA3653CQ/N2 | VERTICAL DEFLECTION IC, PZIP9 |
| TDA3653C/N2 | VERTICAL DEFLECTION IC, PSIP9 |
| TDA3653B/N2 | VERTICAL DEFLECTION IC, PSFM9 |
| TDA3653CU | VERTICAL DEFLECTION IC, PSIP9 |
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 |
发布紧急采购，3分钟左右您将得到回复。