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參數(shù)資料
| 型號： | TDA9874H |
| 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 |
| 文件頁數(shù)： | 40/56頁 |
| 文件大?。?/td> | 254K |
| 代理商： | TDA9874H |
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1998 Apr 27
40
Philips Semiconductors
Preliminary specification
Digital TV sound demodulator/decoder
TDA9874H
7.4.5
L
EVEL
R
EAD
-
OUT
R
EGISTERS
(LRRA
AND
LRRB)
These two bytes constitute a word that provides data from
a location that has been specified with the FM Monitor
Select Register (see Section 7.3.3). The most significant
byte of the data is stored at subaddress 5.
Table 68
Level Read-out Register A (subaddress 5)
Note
1.
B7 is the most significant bit or sign bit of the word.
Table 69
Level Read-out Register B (subaddress 6)
Note
1.
B0 is the least significant bit of the word.
7.4.6
SIF L
EVEL
R
EGISTER
(SIFLR)
When the SIF AGC is on, bits B4 to B0 of this register
contain a number that gives an indication of the SIF input
level. That number can be interpreted in the same way as
the AGC Gain Register setting (see Section 7.3.1), i.e. if
the SIF AGC were set to a fixed gain and the same number
loaded into the AGC Gain Register, the current SIF input
signal level would generate an SIF ADC output close to
full-scale.
When the SIF AGC is off, this register returns the contents
of the AGC Gain Register.
Bits B5 to B7 are not used and are undefined.
Table 70
SIF Level Register (subaddress 7)
Note
1.
Value is undefined.
7.4.7
T
EST
R
EGISTER
2 (TR2)
This register contains as a binary number the highest
subaddress used for slave receiver registers.
The first version will have the identification 00101111.
7
6
5
4
3
2
1
0
B7
(1)
B6
B5
B4
B3
B2
B1
B0
7
6
5
4
3
2
1
0
B7
B6
B5
B4
B3
B2
B1
B0
(1)
7
6
5
4
3
2
1
0
(1)
(1)
(1)
B4
B3
B2
B1
B0
Table 71
Test Register 2 (subaddress 252)
7.4.8
T
EST
R
EGISTER
1 (TR1)
This register contains as a binary number the highest
subaddress used for slave transmitter (status) registers.
The first version will have the identification 00101111.
Table 72
Test Register 1 (subaddress 253)
7.4.9
D
EVICE
I
DENTIFICATION
C
ODE
(DIC)
There will be several devices in the digital TV sound
processor family, with TDA9874H being the second
member. This byte is used to identify the individual family
members.
The first version will have the identification 00000111.
Table 73
Device Identification Code (subaddress 254)
7.4.10
S
OFTWARE
I
DENTIFICATION
C
ODE
(SIC)
It is likely that during the life time of this family of devices
several versions of the DSP software will be made, e.g. to
take care of new application concepts, respond to
customer wishes, etc. This byte is used to identify the
different releases.
The first version will have the identification 00000111.
Table 74
Software Identification Code (subaddress 255)
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
7
6
5
4
3
2
1
0
B7
B6
B5
B4
B3
B2
B1
B0
相關(guān)PDF資料 |
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|---|---|
| TDA9875A | Digital TV Sound Processor DTVSP |
| TDA9875AH | Digital TV Sound Processor DTVSP |
| TDA9875 | Digital TV Sound Processor DTVSP |
| TDA9965 | 12-bit, 5.0 V, 30 Msps analog-to-digital interface for CCD cameras |
| TDZ10 | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA9875 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV Sound Processor DTVSP |
| TDA9875A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV Sound Processor DTVSP |
| 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 |
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