NTE1472
Integrated Circuit
Audio Power Amplifier, 1W
for Tape Recorder
Absolute Maximum Ratings:
(T
A
= +25°C unless otherwise specified)
Maximum Supply Voltage, V
CC
max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11V
Supply Current, I
11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA
Allowable Power Dissipation, P
D
max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2W
(50 x 50 x 1.5mm
3
Al heatsink added) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.25W
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Recommended Operating Conditions:
(T
A
= +25°C unless otherwise specified)
Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Load Resistance, R
L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 (3.2)
Ω
Electrical Characteristics:
(T
A
= +25°C, V
CC
= 6V, R
L
= 4Ω
(3.2Ω),
f = 1kHz, R
G
= 600Ω unless
otherwise specified)
Parameter
Quiescent Current
Voltage Gain
Output Power
Input Resistance
Total Harmonic Distortion
Output Noise Volatge
Symbol
I
CCO
VG
P
O
r
i
THD
V
NO
P
O
= 250mW
R
G
= 10kΩ
R
G
= 0Ω
R
L
= 4Ω, THD = 10%
R
L
= 3.2Ω, THD = 10%
Test Conditions
Min
–
–
0.7
0.8
12k
–
–
–
Typ
15
75
1.0
1.1
20k
–
–
–
Max
25
–
–
–
–
1.5
2.5
0.8
Unit
mA
dB
W
W
Ω
%
mV
mV
Industrial Control Electronics
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