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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)： | 49/56頁 |
| 文件大?。?/td> | 254K |
| 代理商： | TDA9874H |
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1998 Apr 27
49
Philips Semiconductors
Preliminary specification
Digital TV sound demodulator/decoder
TDA9874H
Notes
1.
Audio performance is limited by the dynamic range of the NICAM 728 system. Due to companding, the quantization
noise is never lower than
62 dB with respect to the input level.
Definition of levels and level setting (see Tables 75 and 76):
a) The full-scale level for analog audio signals is V
FS
= 1.4 V (RMS). The nominal level at the digital crossbar switch
is defined at
15 dB (FS).
b) Nominal audio input levels: extern, mono: 500 mV (RMS);
9 dB (FS).
If the supply voltage for the TDA9874H is switched off, because of the ESD protection circuitry all audio input pins
are short-circuited.
The Philips crystal (order number 9922 520 20106) is suited for this application.
The demodulation/decoding is still functional above and below the limits given.
FM source; in dual mode only A (respectively B) signal modulated; measured at B (respectively A) channel output;
V
o
= 1 V (RMS) of modulated channel.
FM source; in stereo mode only L (respectively R) signal modulated; measured at R (respectively L) channel output;
V
o
= 1 V (RMS) of modulated channel.
2.
3.
4.
5.
6.
7.
C
o
C
RYSTAL SPECIFICATION
(
FUNDAMENTAL MODE
)
output capacitance
10
pF
f
xtal
C
L
C
1
C
0
S
crystal frequency
load capacitance
series capacitance
parallel capacitance
pulling sensitivity
note 4
24.576
20
20
25
7
MHz
pF
fF
pF
C
L
changed from 18 to 16 pF
R
s(eq)
R
s(eq)(UM)
equivalent series resistance
equivalent series resistance of
unwanted mode
operating ambient temperature
adjustment tolerance
drift
ageing
at nominal frequency
2R
R
30
T
amb
X
J
X
D
X
A
20
+25
+70
±
30
±
30
±
5
°
C
10
6
10
6
across temperature range
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
pF
6
–
10
year
6
–
10
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|---|---|
| TDA9875A | Digital TV Sound Processor DTVSP |
| TDA9875AH | Digital TV Sound Processor DTVSP |
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| TDA9965 | 12-bit, 5.0 V, 30 Msps analog-to-digital interface for CCD cameras |
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相關代理商/技術參數(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:- 其它有關文件:STA321 View All Specifications 標準包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應商設備封裝: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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