NTE1775
Integrated Circuit
PIF Subsytem for TV Receiver
Description:
The NTE1775 is a picture IF subsystem that provides 3鈥搒tage IF amplifier, Video Detector, black and
white noise inverting circuits and AFT detector for a TV receiver.
The NTE1775 also provides internal fast response AGC with dual time constants for the IF amplifier
stages and delayed AGC for an external RF amplifier stage. It is designed for FET top front鈥揺nd
(reverse AGC).
Features:
D
High Input Sensitivity 3鈥揝tage IF Amplifier: 58.75MHz 100碌V
RMS
Type
D
Gain Reduction with Excellent Stability: Reduction Range 65dB Typ
D
Video Detector with Linear Characteristics
D
Black and White Noise Inverting Circuits
D
Balanced AFT Output
D
Improved Fast AGC Response
D
Delayed AGC Output for a Front鈥揈nd FET Top Front鈥揈nd
D
Minimal External Components and Adjustments Required
Absolute Maximum Ratings:
(T
A
= +25擄C unless otherwise specified)
Supply Voltage (Pin11), V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Open Loop Voltage (Pin14), V
14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Video DC Output Current (Pin12), I
12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6mA
Power Dissipation , P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4W
Derated Above 25擄C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.2mW/擄C
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +65擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
1
2
3
