NTE783
Integrated Circuit
Automatic Fine鈥揟uning Detector
Description:
Specifically intended for use in the automatic fine tuning (AFT) system of color television receivers,
the NTE783 AFT Detector provides all of the required circuitry except the tuning component. The
device embodies a high鈥揼ain input amplifier and automatic gain control (AGC) circuitry to provide ex-
cellent sensitivity in TV AFT systems employing low level IF amplifiers.
Features:
D
Cascade鈥揅ascode Amplifier
D
Internal Voltage Regulator
D
Internal AGC
D
鹵25kHz
Frequency Deviation
D
14鈥揚in Dual In鈥揕ine Plastic Package
Thermal Characteristics:
Operating Temperature Range, T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +85擄C
Storage Temperature Range, T
S
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
Electrical Characteristics:
(T
A
= +25擄C, V
CC
= +30V unless otherwise specified)
Parameter
Static Characteristics
Total Device Dissipation
Supply Current
Amplifier Current
Regulator Voltage
AFT Output Voltage
Output Offset Voltage
Dynamic Characteristics
Input Admittance
Reverse Transfer Admittance
Forward Transfer Admittance
Output Admittance
緯
11
緯
12
緯
21
緯
22
Pin3
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
0.4 + j1
0 + j 3.4
110 + j140
0.02 + j1
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
mmho
mmho
mmho
mmho
P
D
I
CC
I
3
V
REG
V
5,8
V
5鈥?
V
1
= +10.5V
130
4.0
1.0
10.9
5.0
鈥?/div>
140
6.5
2.0
11.8
6.6
0
150
9.5
4.0
12.8
8.0
鹵1.0
mW
mA
mA
V
V
V
Symbol
Test Conditions
Min
Typ
Max
Unit
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