NTE715
Integrated Circuit
TV Chroma IF Amp
Description:
The NTE715 is a combined two鈥搒tage chroma amplifier and functional control circuit. The input signal
is received from the video amplifier and applied to Pin2 of the input amplifier stage. The first amplifier
stage is part of the ACC system and is controlled by differential adjustment from the ACC input Pin1
and Pin14. The output of the 1
st
amplifier is directed to Pin6 from where the signal may be applied
to the ACC detection system of the NTE714 or an equivalent circuit. The output at Pin6 is also applied
to Pin7 which is the input to the 2
nd
amplifier stage. Another output of the 1
st
amplifier at Pin13 is
directed to the killer adjustment circuit.
The DC voltage level at Pin13 rises as the ACC differential voltage decreases with a reduction in the
burst amplitude. At a pre鈥搒et conditions determined by the killer adjustment resistor the killercircuit
is activated and causes the 2
nd
chroma amplifier stage to be cut off. The 2
nd
chroma amplifier stage
is also gain controlled by the adjustment of DC voltage at Pin10. The output of the 2
nd
chroma amplifi-
er stage is available at Pin9. Both amplifier outputs utilize emitter鈥揻ollowers with short鈥揷ircuit protec-
tion.
Absolute Maximum Ratings:
(T
A
= +25擄C unless otherwise specified)
DC Supply Voltage (Pin8 to Pin4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V
Device Dissipation (Up to T
A
= +70擄C), P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530mW
Derate Above 70擄C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.7mW/擄C
Operating Ambient Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +85擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
Lead Temperature (During Soldering, 1/32鈥?(3.17mm) from seating plane, 10s max), T
L
. . +265擄C
Electrical Characteristics:
(T
A
= +25擄C unless otherwise specified)
Parameter
Static Characteristics
Voltages Bias Reference Terminal
Amplifier No. 1 Chroma Input
Amplifier No. 1 Chroma Output
Balanced
Unbalanced
Amplifier No 2 Chroma Input
Amplifier No 2 Chroma Output
Supply Current
V
7
V
9
I
T
V
12
V
2
V
6
S
1
Open, S
2
Open
S
1
Open, S
2
Open
S
1
Open, S
2
Open
S
1
Open, S
2
Closed
S
1
Open, S
2
Open
S
1
Closed, S
2
Open
S
1
Open, S
2
Open
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
17
17.3
1.75
20
13.5
1.5
20.6
24.5
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
31
V
V
V
V
V
V
mA
Symbol
Test Conditions
Min
Typ
Max
Unit
NTE715 產(chǎn)品屬性
NTE
置換半導體
否
1
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