參數(shù)資料
型號(hào)： 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)： 44/56頁
文件大?。?/td> 254K
代理商： TDA9874H
1998 Apr 27
44
Philips Semiconductors
Preliminary specification
Digital TV sound demodulator/decoder
TDA9874H
12 CHARACTERISTICS
V
DD
= 5 V; T
amb
= 25
°
C; settings in accordance with B/G standard; FM deviation
±
50 kHz; f
mod
= 1 kHz; FM sound
parameters in accordance with system A2; NICAM in accordance with “EBU specification” 1 k
measurement source
resistance for AF inputs; V
SIF
= 300 mV (peak-to-peak); AGCOFF = 0; AGCSLOW = 1; level and gain settings
according to note 2 with external components of Fig.7; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Digital supplies
V
DDD1
V
SSD1
I
DDD1
digital supply voltage 1
digital ground supply 1
digital supply current 1
4.5
8
7
4.5
25
22
4.5
7
6
5.0
0.0
12
10
5.0
0.0
32
28
5.0
0.0
12
11
5.5
16
14
5.5
37
33
5.5
16
15
V
V
mA
mA
V
V
mA
mA
V
V
mA
mA
V
DDD1
= 5.5 V
V
DDD1
= 5.0 V
V
DDD2
V
SSD2
I
DDD2
digital supply voltage 2
digital ground supply 2
digital supply current 2
V
DDD2
= 5.5 V
V
DDD2
= 5.0 V
V
DDD3
V
SSD3
I
DDD3
digital supply voltage 3
digital ground supply 3
digital supply current 3
V
DDD3
= 5.5 V
V
DDD3
= 5.0 V
Demodulator supplies and references
V
DDA2
analog supply voltage 2,
demodulator part
analog ground supply 2,
demodulator part
analog supply current 2,
demodulator part
4.5
5.0
5.5
V
V
SSA2
0.0
V
I
DDA2
V
DDA
= 5.5 V
V
DDA
= 5.0 V
20
17
4.5
40
34
35
24
21.5
5.0
0.0
50
44
50
28
25
5.5
60
54
65
mA
mA
V
V
mA
mA
%
V
DDD4
V
SSD4
I
DDD4
digital supply voltage 4
digital ground supply 4
digital supply current 4
V
DDD2
= 5.5 V
V
DDD2
= 5.0 V
with respect to V
DDA2
/V
SSA2
V
ref1
analog reference voltage 1,
demodulator part
V
ref1
sink current
I
ref(sink)
170
220
260
μ
A
Audio supplies and references
V
DDA3
analog supply voltage 3,
operational amplifiers
analog ground supply 3,
operational amplifiers
analog supply current 3,
operational amplifiers
4.5
5.0
5.5
V
V
SSA3
0.0
V
I
DDA3
V
DDA
= 5.5 V
V
DDA
= 5.0 V
1.3
1.2
4.5
1.8
1.7
5.0
2.4
2.3
5.5
mA
mA
V
V
DDA1
analog supply voltage 1,
audio DAC part
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TDA9875 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV Sound Processor DTVSP
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