NTE1789
Integrated Circuit
TV Sound Preamp, AF Output, Volume Control
Description:
The NTE1789 is an integrated circuit in a 9鈥揕ead SIP type package designed for use in TV sound
output circuit.
Features:
D
DC Volume Control System
Absolute Maximum Ratings:
(T
A
= +25擄C unless otherwise specified)
Supply Voltage, V
1鈥?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.4V
Supply Voltage, V
9鈥?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26V
Circuit Voltage, V
3鈥?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 7V
Circuit Voltage, V
4鈥?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to V
1鈥?
V
Circuit Voltage, V
6鈥?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to V
9鈥?
V
Peak Circuit Current, I
4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0 to +3mA
Peak Circuit Current, I
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?.2 to +1.2mA
Power Dissipation, P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6W
Operating Ambient Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +70擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
Electrical Characteristics:
(T
A
= +25擄C unless otherwisepsecified)
Parameter
Circuit Current
Circuit Voltage
Symbol
I
I
V
2鈥?
V
5鈥?
V
6鈥?
V
8鈥?
Max. Output Voltage
Voltage Gain
Total Harmonic Distortion
Max. Attenuation
Output Noise Voltage
Mute Operating Voltage
G
V
THD
A
tt
V
no
V
3鈥?
Test Conditions
SW
1
: 1, SW
2
: 1
SW
1
: 2, SW
2
: 1
SW
1
: 2, SW
2
: 1
SW
1
: 2, SW
2
: 1
SW
1
: 2, SW
2
: 2
V
4
= 12V, V
i
= 0.1V
rms
, f = 1kHz
V
4
= 12V, P
O
= 1W, f = 1kHz
f = 1kHz, V
i
= 0.1V
rms
, Ratio between
V
4
= 12V and V
4
= 0V
V
4
= 0V, V
i
= 0V
rms
f = 1kHz, V
4
= 12V, when V
8
= 0V
rms
Min
7.1
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
2.0
Typ
9.5
5.4
8.5
8.8
8.8
2.3
Max
11.9
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Unit
mA
V
V
V
V
W
dB
%
dB
mV
rms
V
P
O
max V
4
= 12V, f = 1kHz, THD = 10%
28.5 30.5 32.5
鈥?/div>
鈥?/div>
鈥?/div>
0.8
鈥?5
0.6
1.2
鈥?5
1.0
2.45 2.65 2.85
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