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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： | 17/18页 |
| 文件大小： | 152K |
| 代理商： | TDA3853T-T |
January 1992
8
Philips Semiconductors
Preliminary specication
TV IF amplier and demodulator with
TV-identication
TDA3853T
CVBS buffer amplier (pins 12 and 13)
R13
input resistance
3.3
k
C13
input capacitance
2
pF
Vo CVBS
typical CVBS output signal on pin 14
(peak-to-peak value)
note 4
2
V
CVBS output level
upper video clipping
4.25
V
lower video clipping
0.3
V
sync level
1.35
V
I12
output current
DC and AC
±1mA
R12
output resistance
10
Gv
voltage gain
note 4
6.5
7
7.5
dB
B
3 dB video bandwidth
C14 < 20 pF
tbn
14
MHz
RR
ripple rejection on pin 12
fripple = 70 Hz; note 3
tbn
35
dB
Measurements from IF input to CVBS output (pin 12)
Vo CVBS
typical CVBS output signal on pin 12
(peak-to-peak value)
Fig.10
1.7
2
2.3
V
Vo
deviation of CVBS output signal at B/G
50 dB gain control
0.5
dB
30 dB gain control
0.1
dB
G
differential gain
10 to 90% modulation
25%
differential phase
10 to 90% modulation
25
o
tiltH
horizontal tilt
0.7
1.5
%
B
2 dB video bandwidth
CL < 20 pF
tbn
12
MHz
S/N
signal-to-noise ratio
note 5; Fig.5
58
dB
α1.1
intermodulation at “blue”, note 6
f = 1.1 MHz; Fig.8
56
58
dB
intermodulation at “yellow”
f = 1.1 MHz
53
56
dB
α3.3
intermodulation at “blue”
f = 3.3 MHz
62
dB
intermodulation at “yellow”
f = 3.3 MHz
60
dB
α1H
residual vision carrier (RMS value)
fundamental wave
110
mV
α2H
second harmonic
110
mV
αspur
suppression of spurious video signal
harmonics
transformer; Fig.4
22
26
dB
RR
ripple rejection on pin 12
fripple = 70 Hz; note 3
tbn
30
dB
AGC detector (pin 18)
Tresp
response to an increasing amplitude step
of 50 dB in input signal
110
ms
response to a decreasing amplitude step
of 50 dB in input signal
150
300
ms
V18
gain control voltage on capacitor
full gain range
1.5
4V
I18
peak charging current (peak value)
2
mA
charging current
0.5
mA
discharging current
11
A
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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