NTE747
Integrated Circuit
Low Level Video Detector
Description:
The NTE747 is a low level video detector in an 8鈥揕ead DIP type package featuring very linear video
characteristics and bandwidth. Designed for color and monochrome television receivers, replacing
the third IF, detector, video buffer, and the AFC buffer.
Features:
D
Conversion Gain: 34dB Typ
D
Video Frequency Response @ 6MHz < 1dB
D
Input of 36mV Produces 3V
P鈥揚
Output
D
High Video Output: 7.7V
P鈥揚
D
Fully Balanced Detector
D
High Rejection of IF Carrier
D
Low Radiation of Spurious Frequencies
Absolute Maximum Ratings:
(T
A
= +25擄C unless otherwise specified)
Power Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24V
Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26mA
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1V
RMS
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 625mW
Derate Above 25擄C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mW/擄C
Operating Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0擄 to +75擄C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
Electrical Characteristics:
(T
A
= +25擄C, V+ = 20V, Q = 30, f
C
= 45MHz unless otherwise specified)
Parameter
Supply Voltage Range
Supply Current
Zero Signal DC Output Voltage
Maximum Signal DC Output Voltage
Input Signal Voltage
Pin
6
5, 6
4
4
7
3V
P鈥揚
Video Output, 90% Modulation
Test Conditions
Min
12
鈥?/div>
6.8
鈥?/div>
鈥?/div>
Typ
20
15
7.7
0
36
Max
24
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