參數(shù)資料
型號： 935263704557
廠商： NXP SEMICONDUCTORS
元件分類： 接收器
英文描述： AM/FM, AUDIO DEMODULATOR, PQFP44
封裝： PLASTIC, QFP-44
文件頁數(shù)： 48/71頁
文件大?。?/td> 304K
代理商： 935263704557
2000 Aug 04
52
Philips Semiconductors
Product specication
Digital TV sound demodulator/decoder
TDA9874A
11 CHARACTERISTICS
VDD =5V; Tamb =25 °C; settings in accordance with B/G standard; FM deviation ±50 kHz; fmod = 1 kHz; FM sound
parameters in accordance with system A2; NICAM in accordance with
“EBU NICAM 728 specication”;
1k
measurement source resistance for AF inputs; V
SIF = 300 mV (p-p); bit AGCOFF = 0; bit AGCSLOW = 1;
level and gain settings according to note 1 with external components of Fig.9; unless otherwise specied.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Digital supplies
VDDD1
digital supply voltage 1
4.5
5.0
5.5
V
VSSD1
digital ground supply 1
0.0
V
IDDD1
digital supply current 1
VDDD1 = 5.5 V
4059
74mA
VDDD1 = 5.0 V
4259
75mA
VSSD2
digital ground supply 2
0.0
V
VDDD3
digital supply voltage 3
4.5
5.0
5.5
V
VSSD3
digital ground supply 3
0.0
V
IDDD3
digital supply current 3
VDDD3 = 5.5 V; SYSCLK off
9
17
21
mA
VDDD3 = 5.0 V; SYSCLK off
8
16
20
mA
Power failure register
Vpfr
power failure response voltage
4.0
V
Demodulator supplies and references
VDDA3
analog supply voltage 3 for
demodulator part
4.5
5.0
5.5
V
VSSA3
analog ground supply 3 for
demodulator part
0.0
V
IDDA3
analog supply current 3 for
demodulator part
VDDA3 = 5.5 V
2432
40mA
VDDA3 = 5.0 V
2432
40mA
VDEC1
analog supply decoupling
voltage for front-end
3.3
V
VSSA2
analog ground supply 2
0.0
V
Vref1
analog reference voltage for
demodulator part
2
V
Iref1(sink)
sink current at pin Vref1
200
A
Audio supplies and references
VDDA1
analog supply voltage 1 for
operational ampliers
4.5
5.0
5.5
V
VSSA1
analog ground supply 1 for
operational ampliers
0.0
V
IDDA1
analog supply current 1 for
operational ampliers
VDDA1 = 5.5 V
3
6
10
mA
VDDA1 = 5.0 V
3
5
10
mA
VSSA4
analog ground supply 4 for
audio DAC part
0.0
V
Vref2
reference voltage 2 for audio
DACs and operational ampliers
referenced to VDDA1 and
VSSA1
50
%
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