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参数资料
| 型号： | TDA4472-MFLG3 |
| 厂商： | TEMIC SEMICONDUCTORS |
| 元件分类： | 接收器 |
| 英文描述： | FM, AUDIO/VIDEO DEMODULATOR, PDSO28 |
| 封装： | SO-28 |
| 文件页数： | 12/14页 |
| 文件大小： | 161K |
| 代理商： | TDA4472-MFLG3 |
TDA4472
Rev. A2, 04-Dec-98
7 (14)
Unit
Max.
Typ.
Min.
Symbol
Test Conditions / Pins
Parameters
Video frequency response over
the AGC range
Β
2.0
dB
Differential gain error
DG
2
5
%
Differential phase error
DP
2
5
deg
Intermodulation
1.07 MHz
See note 6
aIM
52
60
dB
Video signal to noise ratio
Weighted, CCIR-567
S/N
56
60
dB
Residual vision carrier
fundamental wave 38.9 MHz
and second harmonic 77.8 MHz
vres1
2
10
mV
Lower limiting level
Below sync level
Vlim1
400
mV
Upper limiting level
Above ultra white level
Vlim2
600
mV
Ripple rejection
See note 1, Pin 23/Pin 12
RR
35
dB
AFC output
Pin 22
Control slope
I/f
0.7
mA/kHz
Frequency drift by temperature
Related to the picture
carrier frequency
0.25
0.6
%
Output voltage – upper limit
– lower limit
VAFC
VS–0.4
0.4
V
Output current
IAFC
±0.2
mA
AFC switch
Pin 19
Control voltage: AFC “off”
AFC “on”
See note 7
VSW
0
3.5
0.8
VS
V
Switching current
ISW
±100
mA
SIF inputs
Pin 1-2, 27-28
Input sensitivity
(RMS value)
Output signal
at Pin 24/25: –3 dB
vin
80
120
mVRMS
Input impedance
See note 1
Rin
1.2
k
W
Input capacitance
See note 1
Cin
2
pF
SIF-AGC
Pin 5
IF gain control range
Gv
60
65
dB
AGC capacitor
CAGC
10
mF
Intercarrier output-FM
Pin 24
see note 8
DC output voltage
VDC
2
V
Output resistance
See note 1
Rout
150
W
Sound IF output voltage
(5.5 MHz output voltage)
vin = 10 mV
vout
180
250
350
mVRMS
Weighted signal to noise ratio:
(CCIR 468)
Ref. signal:
vin = 10 mV;
FM dev. =
±27 kHz
fmod = 1 kHz;
tested with the double
FM demod. U2860B;
B/G modulated VIF signal
Black screen: Channel 1/2
Grid pattern: Channel 1/2
Grey screen 50%: Channel
1/2
S/N
60/58
54/52
60/57
dB
Ripple rejection
See note 1, Pin 23/Pin 24
RR
35
dB
SIF input selector switch
Pin 3
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