NTE746 Datasheet, PDF (1/2 Pages) NTE Electronics – Integrated Circuit TV Video IF Amplifier

NTE746
Integrated Circuit
TV Video IF Amplifier
Description:
The NTE746 is a monolithic integrated circuit in an 8–Lead DIP type package with wide–range AGC
for replacement of 1^st and 2^nd IF stages in solid–state color and black and white TV sets. It will directly
drive a 3^rd IF stage.
Features:
D Center Frequency: F_O = 45MHz
D
D Bandwidth: BW = 6MHz
D
D Power Gain: 50dB Min
D
D AGC Range: 60dB Min
D
D Low Reverse–Transfer Admittance: 1µmho Typ
Y₂₁ Constant to 75MHz
12V Operation, Single–Polarity 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°C)
Power Supply, V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Output Supply, V₁, V₈ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
AGC Supply, V_AGC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4V < V_AGC < V+
Differential Input Voltage, V_in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±7V
Power Dissipation, P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 625mW
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mW/°C
Operating Temperature Range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +75°C
Electrical Characteristics: (V+ = 12V, T_A = +25°C unless otherwise specified)
Parameter
Symbol Test Conditions
Min Typ Max Unit
DC Characteristics
Total Supply Current
I_S Pin1, Pin2, and Pin8
– 20 – mA
Output Stage Current
I₁ + I₈
– 6.5 – mA
AGC Supply Voltage
V_AGC 0dB Attenuation
– 5.0 –
V
60dB Attenuation
– 6.9 –
V
AGC Supply Current
I_AGC 0db Attenuation
– 0.1 – mA
60dB Attenuation
– 0.2 – mA