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參數(shù)資料
| 型號： | TDA9875A |
| 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)： | 38/96頁 |
| 文件大?。?/td> | 296K |
| 代理商： | TDA9875A |
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1999 Dec 20
38
Philips Semiconductors
Product specification
Digital TV Sound Processor (DTVSP)
TDA9875A
10.3.4
C
ARRIER
1
FREQUENCY REGISTER
The three bytes together constitute a 24-bit frequency
control word to represent the sound carrier (i.e. mixer)
frequency in accordance with the following formula:
f
f
clk
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 TDA9875A (data = 7509333 in decimal
notation or 72555 in hexadecimal):
01110010 10010101 01010101.
As three bytes are required to define a carrier frequency,
execution of this 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 default setting at power-up is 0000 0000 for all three
bytes.
Most significant part at subaddress 3 and least significant
part at subaddress 5 (see Table 20).
Table 20
Subaddresses 3 to 5
data
--------
2
24
×
=
SUB-
ADDRESS
BIT
DESCRIPTION
3
7 (MSB)
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0 (LSB)
carrier 1 frequency;
most significant part
4
carrier 1 frequency
5
carrier 1 frequency;
least significant part
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA9875AH | 制造商:PHILIPS 制造商全稱: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 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關(guān)文件:STA321 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應(yīng)用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6 |
| TDA9880 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Alignment-free multistandard vision and FM sound IF-PLL demodulator |
| TDA9880T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Alignment-free multistandard vision and FM sound IF-PLL demodulator |
| TDA9881 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Alignment-free vision and FM sound IF PLL demodulator for negative modulated TV standards |
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