NTE791
Integrated Circuit
TV Chroma Amplifier Demodulator
Description:
Compromised of an independent 2鈥搒tage chroma amplifier, chroma demodulators, resistor matrix,
and color difference amplifiers. The NTE791 monolithic silicon integrated circuit is one of two blocks
required for a complete color television receiver chroma system.
The chroma amplifiers contain the necessary circuitry for automatic chroma control and color鈥搆iller
sensing and control. The demodulators and resistor matrix reconstruct the G鈥揧 color chain to bypass
unwanted harmonics. The high鈥搇evel emitter follower outputs are current limited for short鈥揷ircuit
protection.
Features:
D
DC Chroma Gain Control
D
Improved Filtering for Harmonic Reduction
D
Output Short鈥揅ircuit Current Limiting
D
Self鈥揅ontained Bias Regulator
D
Low Thermal Drift, Typically 1mV/擄C
D
Doubly Balanced Demodulation
Absolute Maximum Ratings:
Operating Temperature Range, T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +85擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
Maximum Voltage and Current Ratings (T
A
= +25擄C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Table
Current in mA
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Voltage Range in Volts
0 to +16
鈥?/div>
0 to V
CC
鈥?/div>
reference
0 to V
CC
0 to +15
0 to +15
0 to V
CC
0 to V
CC
0 to V
CC
0 to +30
0 to +10
0 to V
CC
0 to +16
0 to +16
Input
鈥?/div>
2.0
1.0
2.0
1.0
鈥?/div>
鈥?/div>
鈥?/div>
0
0
0
50
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Output
鈥?/div>
鈥?/div>
10
鈥?/div>
50
鈥?/div>
鈥?/div>
鈥?/div>
Note 1
Note 1
Note 1
1.0
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Note 1. Maximum continuous current output is 20mA and is limited by package power dissipation.
Short circuit current is typically 50mA.
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