1704

NTE1704
Integrated Circuit
Audio Power Amplifier, 1.2W
Features:
D Incorporating Automatic Operating Point Stabilizer
D Low Noise
D Variable Frequency Characteristics
D Few External Components Required
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Supply Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2A
Power Dissipation (TA = +30°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5W
Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +75°C
Storage Temperatuere Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Electrical Characteristics: (TA = +25°C, VCC = 9V, RL = 8Ω, f = 1kHz unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Quiescent Circuit Current
ICQ
Vi = 0
10
20
50
mA
Voltage Gain
GVC
Vi = 5mV
43
46
49
dB
Output Power
PO
THD = 10%
0.8
1.2
–
W
VCC = 6V, RL = 8Ω, THD = 10%
–
0.55
–
W
VCC = 6V, RL = 4Ω, THD = 10%
–
0.9
–
W
Total Harmonic Distortion
THD
Vi = 5mV
–
0.5
1.5
%
Output Noise Voltage
Vno
Rg = 10kΩ
–
0.5
1.2
mV
–
25
–
kΩ
Input Impedance
Zi
Pin Connection Diagram
(Front View)
9 VCC
8 Bootstrap
7 Ripple Filter
6 Ripple Filter
5 Input
4 Negative Feedback
3 Phase Compensation
2 GND
1 Output
.929 (23.6)
.118 (3.0)
.236
(6.0)
1
9
.098
(2.5)
.100 (2.54)
.118(3.0)
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