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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： | 16/18页 |
| 文件大小： | 152K |
| 代理商： | TDA3853T-T |
January 1992
7
Philips Semiconductors
Preliminary specication
TV IF amplier and demodulator with
TV-identication
TDA3853T
CHARACTERISTICS
VP = 5 V; Tamb = 25 °C, fVC = 38.9 MHz; ViIF = 10 mV rms; DSB video modulation; sync level for B/G.
Measurements taken in Fig.3 without notch components and video signal according to Fig.4 unless otherwise specied.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VP
supply voltage range (pin 15)
4.75
5
6
V
IP
supply current
46
55
mA
Standard set inputs (Table 1)
VIL
input voltage LOW, pins 5 and 7
0
0.8
V
Vision IF input (pins 1-20)
Vi
input signal sensitivity (RMS value)
1 dB video
70
100
V
maximum input signal (RMS value)
+1 dB video; note 1
100
mV
Gv
IF gain control range
Fig.6
63
66
dB
B
IF bandwidth
3dB
80
MHz
Ri
input resistance
2
k
Ci
input capacitance
1.5
pF
VI
DC voltage on pins 1 and 20
2.50
V
Synchronous demodulator (pins 10 and 11)
Vo ref
picture carrier amplitude, pins 10-11
(peak-to-peak value)
1.6
V
R10-11
integrated operating resistance
12
k
RL 10-11
load resistance
tbn
k
QL
load Q-factor of resonance circuit; note 2
no notch components
55
60
V10, 11
DC voltage
2.8
V
Composite video output (pin 14)
Vo
output signal (peak-to-peak value)
0.9
1.0
1.1
V
V14
sync level
1.5
V
ultra-white level
2.63
V
upper video clipping level
4.3
V
lower video clipping level
0.3
V
R14
output resistance
10
I14
output current
DC and AC
±1mA
B
1 dB video bandwidth
C14 < 20 pF
tbn
10
MHz
3 dB video bandwidth
C14 < 20 pF
tbn
14
MHz
RR
ripple rejection on pin 14
fripple = 70 Hz; note 3
tbn
30
dB
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