NTE746
Integrated Circuit
TV Video IF Amplifier
Description:
The NTE746 is a monolithic integrated circuit in an 8鈥揕ead DIP type package with wide鈥搑ange AGC
for replacement of 1
st
and 2
nd
IF stages in solid鈥搒tate color and black and white TV sets. It will directly
drive a 3
rd
IF stage.
Features:
D
Center Frequency: F
O
= 45MHz
D
Bandwidth: BW = 6MHz
D
Power Gain: 50dB Min
D
AGC Range: 60dB Min
D
Low Reverse鈥揟ransfer Admittance: 1碌mho Typ
D
D
D
D
Y
21
Constant to 75MHz
12V Operation, Single鈥揚(yáng)olarity Power Supply
Total Supply Current: 20mA Typ
Nearly Constant Input and Output Admittance
over the Entire AGC Range
Applications:
D
TV Video IF
D
Defense Communications Satellite Programs
D
Combined AM/FM Radio IF Amplifiers
D
Linear Switch or Chopper for Multiplex Modulation or Demodulation
Absolute Maximum Ratings:
(T
A
= +25擄C)
Power Supply, V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Output Supply, V
1
, V
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
AGC Supply, V
AGC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4V < V
AGC
< V+
Differential Input Voltage, V
in
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
鹵7V
Power Dissipation, P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 625mW
Derate Above 25擄C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mW/擄C
Operating Temperature Range, T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0擄 to +75擄C
Electrical Characteristics:
(V+ = 12V, T
A
= +25擄C unless otherwise specified)
Parameter
DC Characteristics
Total Supply Current
Output Stage Current
AGC Supply Voltage
AGC Supply Current
I
S
I
1
+ I
8
V
AGC
I
AGC
0dB Attenuation
60dB Attenuation
0db Attenuation
60dB Attenuation
Pin1, Pin2, and Pin8
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
20
6.5
5.0
6.9
0.1
0.2
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
mA
mA
V
V
mA
mA
Symbol
Test Conditions
Min
Typ
Max
Unit
NTE746 產(chǎn)品屬性
NTE
置換半導(dǎo)體
否
1
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