- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383990 > TDA9874AH (NXP SEMICONDUCTORS) Digital TV sound demodulator/decoder PDF資料下載
參數(shù)資料
| 型號(hào)： | TDA9874AH |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 接收器 |
| 英文描述： | Digital TV sound demodulator/decoder |
| 中文描述： | AM/FM, AUDIO DEMODULATOR, PQFP44 |
| 封裝： | 14 X 14 MM, 2.20 MM HEIGHT, PLASTIC, SOT-205-1, QFP-44 |
| 文件頁(yè)數(shù)： | 33/68頁(yè) |
| 文件大?。?/td> | 231K |
| 代理商： | TDA9874AH |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)當(dāng)前第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)
1999 Dec 03
33
Philips Semiconductors
Preliminary specification
Digital TV sound demodulator/decoder
TDA9874A
10.3.5
C
ARRIER
1 F
REQUENCY
R
EGISTER
(C1FR)
This register should not be used when applying ESP.
Three bytes are required to define a 24-bit frequency
control word to represent the sound carrier (i.e. mixer)
frequency. These three bytes are stored at
subaddresses 3 to 5; subaddress 3 being the high byte.
Execution of the command starts only after all bytes have
been received. If an error occurs, e.g. a premature STOP
condition, partial data for this function is ignored. The
sound carrier frequency can be calculated in accordance
with the following formula:
where:
data = 24-bit frequency control word
f
mix
= desired sound carrier frequency
f
clk
= 12.288 MHz (clock frequency of mixer)
2
24
= 16777216 (number of steps in a 24-bit word size).
Example: A 5.5 MHz sound carrier frequency will be
generated by sending the following sequence of data
bytes to the TDA9874A (data = 7509333 in decimal
notation or 729555 in hexadecimal notation):
01110010 10010101 01010101.
The default setting after power-on reset is ‘0000 0000’ for
all three bytes.
data
f
f
clk
--------
2
24
×
=
Table 23
Carrier 1 frequency register high byte (subaddress 3)
Table 24
Carrier 1 frequency register middle byte (subaddress 4)
Table 25
Carrier 1 frequency register low byte (subaddress 5)
10.3.6
C
ARRIER
2 F
REQUENCY
R
EGISTER
(C2FR)
This register should not be used when applying ESP. The format is the same as for sound carrier 1, except
subaddresses 6 to 8 are used. Subaddress 6 holds the high byte.
If the C2FR is used, it will be for either the second FM sound carrier of a terrestrial or satellite FM program or the NICAM
sound carrier.
7
6
5
4
3
2
1
0
B7
B6
B5
B4
B3
B2
B1
B0
7
6
5
4
3
2
1
0
B7
B6
B5
B4
B3
B2
B1
B0
7
6
5
4
3
2
1
0
B7
B6
B5
B4
B3
B2
B1
B0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA9874APS | Digital TV sound demodulator/decoder |
| TDCS6440G | SONET/SDH 40 Gbits/s Cross Connect( SONET/SDH 40G位/秒交叉連接器件) |
| TDK5100F | 434 MHz ASK/FSK Transmitter in 10-pin Package |
| TDK5100 | ASK/FSK Transmitter 868/433 MHz |
| TE28F004S3-150 | BYTE-WIDE SMART 3 FlashFile MEMORY FAMILY 4, 8, AND 16 MBIT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA9874AH/V2,557 | 功能描述:音頻放大器 DIGITAL STEREO DECODER VCR RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA9874AHB | 功能描述:音頻放大器 DIGITAL STEREO DECODER VCR RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA9874APS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV sound demodulator/decoder |
| TDA9874H | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV sound demodulator/decoder |
| TDA9875 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV Sound Processor DTVSP |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。