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NTE1294 Datasheet Preview

NTE1294 Datasheet

Integrated Circuit Audio Power Amplifier / 1.2W

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NTE1294 pdf
NTE1294
Integrated Circuit
Audio Power Amplifier, 1.2W
Description:
The NTE1294 is a monolithic integrated audio amplifier in an 8–Lead DIP type package designed for
use as a low frequency class B power amplifier with a wide supply voltage range (3V to 16V) in porta-
ble radios, cassette recorders, and players etc.
Features:
D Minimum Working Supplu Voltage: Vs = 3V Min
D Low Quiescent Current
D Low Number of External Components
D Good Ripple Rejection
D No Cross–over Distortion
D Low Power Dissipation
D Output Power:
Po = 2W at 12V/8
Po = 1.6W at 9V/4
Po = 1.2W at 9V/8
Absolute Maximum Ratings:
Supply Voltage, Vs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V
Output Peak Current, Io . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A
Power Dissipation (TA = +50°C), Ptot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1W
Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Maximum Thermal Resistance, Junction–to–Ambient, RthJA . . . . . . . . . . . . . . . . . . . . . . . . 100°C/W
Electrical Characteristics: (VS = 9V, TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Supply Voltage
Quiescent Output Voiltage (Pin5)
Quiescent Drain Current
Bias Current (Pin3)
Vs
Vo
Id
Ib
3 – 16 V
4.0 4.5 5.0 V
– 4 12 mA
– 0.1 – µA



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NTE1294 Datasheet Preview

NTE1294 Datasheet

Integrated Circuit Audio Power Amplifier / 1.2W

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NTE1294 pdf
Electrical Characteristics (Cont’d): (VS = 9V, TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Output Power
Input Sensitivity
Po d = 10%, Vs = 12V, RL = 82 W
f = 1kHz,
Rf = 120
Vs = 9V, RL = 4
1.6 W
Vs = 9V, RL = 80.9 1.2 W
Vs = 6V, RL = 40.75 W
Vs = 3.5V, RL = 40.25 W
Vs = 3V, RL = 40.20 W
Vi(rms) Po = 1.2W,
RL = 8,
f = 1kHz
Rf = 33
Rf = 120
16 mV
60 mV
Po = 50mW, Rf = 33
RL = 8,
f = 1kHz
Rf = 120
3.5 mV
12 mV
Input Resistance (Pin3)
Frequency Response (3dB)
Distortion
Ri f = 1kHz
B RL = 8,
CB = 680pF
C5 = 1000µF,
Rf = 120
CB = 220pF
d Po = 500mW, Rf = 33
RL = 8,
f = 1kHz
Rf = 120
5
25 to 7000
25 to 20000
0.8
0.4
M
Hz
Hz
%
%
Voltage Gain (Open Loop)
Voltage Gain (Closed Loop)
Input Noise Voltage
Input Noise Current
Signal to Noise Ratio
Gv
Gv
eN
iN
S+N
N
f = 1kHz, RL = 8
RL = 8,
f = 1kHz
Rf = 33
Rf = 120
Note 1
Note 1
Po = 1.2W,
RL = 8,
Gv = 34dB,
Note 1
R1 = 10k
R1 = 50k
75 dB
45 dB
34 dB
3 µV
0.4 nA
80 dB
70 dB
Supply Voltage Rejection
SVR RL = 8, fripple = 100Hz,
C6 = 47µF, Rf = 120
42 dB
Note 1. B = 22Hz to 22kHz


Part Number NTE1294
Description Integrated Circuit Audio Power Amplifier / 1.2W
Maker NTE
Total Page 3 Pages
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