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参数资料
| 型号： | TDA3853T-T |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 接收器 |
| 英文描述： | AM, VIDEO DISCRIMINATOR, PDSO20 |
| 文件页数： | 18/18页 |
| 文件大小： | 152K |
| 代理商： | TDA3853T-T |
January 1992
9
Philips Semiconductors
Preliminary specication
TV IF amplier and demodulator with
TV-identication
TDA3853T
Tuner AGC (pin 19)
Vi
IF input signal for minimum starting point
of tuner take over (RMS value)
input at pins
1-20
1mV
IF input signal for maximum starting point
of tuner take over (RMS value)
input at pins
1-20
50
mV
GIF
IF gain variation
maximum
IAGC
=1mA
36dB
V19
permitted output voltage
from external
13.2
V
saturation voltage
I19 = 1 mA
0.2
0.5
V
V19
variation of take over point by temperature
T = 60 °C
23dB
I19
sink current
no tuner gain
reduction; Fig.7
0
0.1
A
maximum tuner gain
reduction
1.5
1.8
2.0
mA
RR
ripple rejecting on pin 19
fripple = 70 Hz; note 3
tbn
20
dB
TV identication and black level detector (pins 5, 6 and 3)
Vi
IF input signal on pins 1-20
(RMS value)
TV identied
50
V
C/N
carrier-to-noise ratio at IF input
TV identied; note 7
10
dB
V14
minimum sync amplitude in relation to
typical sync
identication on
30
%
V6
output voltage for TV identied
4.5
4.95
VP
V
output voltage for TV not identied
I7 = 500 A
0.1
0.4
V
I6
output current (sink)
no ident
500
A
allowed leakage current (source)
ident
1
A
V5
voltage for “identication on”
2.2
F capacitor on
pin 5
2.6
V
Ileak
permitted leakage current (capacitor pin 5)
3
A
tp V
vertical pulse duty cycle for TV identied
tsync/tvertical
4
8
25
103
Tracking generator, AFT (pins 7 and 8)
note 8
V8
maximum output voltage
note 9; Fig.9
4.3
4.7
V
minimum output voltage
0.3
0.7
V
permitted output voltage
VP
V
I8
sink output current
160
180
220
A
source output current
160
180
220
A
offset output current
±20
A
S
control steepness
Ig/f; note 9
2
A/kHz
phase offset spread for 38.9 MHz
note 10
±4
o
V7
input voltage for TRSW
tracking off; Table 1
0
0.8
V
(independent of other mode switches)
tracking on
open-circuit
V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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