1476

NTE1476
Integrated Circuit
Audio Power Amplifier, 1.4W
Description:
The NTE1476 is an audio power amplifier in a 10–Lead SIP type package designed for use as a power
amplifier in portable cassette tape recorder applications.
Features:
D Recommended Supply Voltage: VCC = 7.5V, 9.0V
D Output Power:
POUT = 1.4W (Typ) at VCC = 7.5V, RL = 4Ω
POUT = 2.0W (Typ) at VCC = 9.0V, RL = 4Ω THD = 10%
D Minimum Operating Voltage: VCC = 5.0V
D Low Quiescent Current
D Excellent Ripple Rejection
D Built in Turn–On Muting Circuit
Absolute Maximum Ratings: (TA = +25°C)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V
Output Current (Peak), IO(peak) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8A
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0W
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Electrical Characteristics: (TA = +25°C, RL = 4Ω, Rg = 600Ω, Rf = 150Ω, f = 1kHz unless
otherwise specified)
Parameter
Quiescent Current
Output Power
Symbol
ICCQ
POUT
Test Conditions
Min
Typ Max Unit
VCC = 5V
55
–
–
mA
VCC = 9V
7
–
30
mA
VCC = 14V
–
–
35
mA
VCC = 5V
–
0.65
–
W
VCC = 7.5V
–
1.4
–
W
1.5
2.0
–
W
THD = 10%
VCC = 9V
Electrical Characteristics (Cont’d): (TA = +25°C, RL = 4Ω, Rg = 600Ω, Rf = 150Ω, f = 1kHz
unless otherwise specified)
Parameter
Symbol
Total Harmonic Distortion
THD
Test Conditions
POUT = 100mW
Min
Typ Max Unit
VCC = 7.5V
–
0.35
–
%
VCC = 9V
–
0.35
1.0
%
VCC = 9V, Rf = 0, VIN = 0.245mVrms
–
72
–
dB
Open Loop Voltage Gain
GVO
Closed Loop Voltage Gain
GV
VCC = 9V, Rf = 150Ω, VIN = 3.9mVrms
–
46
–
dB
Input Resistance
RIN
VCC = 9V, VOUT = 1Vrms
25
30
–
kΩ
Output Noise Voltage
VNO
VCC = 9V, Rg =10kΩ, BW = 50Hz to 20kHz
–
–
1.0
mV
Pin Connection Diagram
(Front View)
10 Output
9 GND
8 50pf to Pin7
7 50pf to Pin8
6 Feedback
5 Input Low
4
Input High
3 Bypass
2 Bypass
1 VCC
1.050 (26.67) Max
.867 (22.0)
.079
(2.0)
.128 (3.2) Dia
.276
(7.0)
.433
(11.0)
1
10
.217 (5.5)
.100 (2.54)
.900 (22.8)