NTE740A 데이터 시트보기 (PDF) - NTE Electronics
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NTE740A Datasheet PDF : 2 Pages
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NTE740A
Integrated Circuit
Audio Power Amp, 2W
Description:
TheNTE740A is an Audio Power Amplifier in a 14–Lead DIP type package designed for minimal external
component requirements.
Features:
D Low Distortion
D Low Quiescent Current
D 34dB Internally Fixed Gain
D High Input Impedance
D Thermal Overload Protection
D Output Short Circuit Current Limiting
Absolute Maximum Ratings:
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26V
Peak Output Current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2A
Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Electrical Characteristics: (TA = +25°C, VCC = 18V, f = 1kHz, RL = 8Ω unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Supply Voltage Range
Quiescent Supply Current
Quiescent Output Voltage
Output Voltage Swing
Voltage Gain
Total Harmonic Distortion
Audio Output Power
Input Impedance
Power Supply Rejection Ratio
Equivalent Input Noise Voltage
Sensitivity Input Voltage
Bandwidth (–3dB)
VCC
ICC
VOQ
VO
AV
THD
Pout
Zin
PSRR
ein
BW
No Signal Applied
No Signal Applied, Note 1
Pout = 2W
Pout = 0
Pout = 2W, Note 2
Pout = 50mW, Note 3
THD = 2%, RL = 8Ω, Note 4
THD = 2%, RL = 16Ω, Note 4
Each Input
Pout = 0, f = 120Hz, Note 5
f = 20Hz to 20kHz
eout = 4.0Vrms, Pout = 2W
Pout = 1W, Note 6
9 10 26 V
– 15 – mA
9
–
–
V
–
12
– VP–P
31 34 37 dB
– 1.0 2.0 %
– 0.5 1.0 %
2.0 2.5 –
W
2.0 2.5 –
W
140 170 – kΩ
– 40 – dB
–
60
– µVrms
– 80 – mV
– 100 – kHz
Note 1. The quiescent output voltage typically equals 1/2 the normal VCC voltage = 1 Volt.
Note 2. When driving a 16Ω load, the nominal VCC is 24V.
Note 3. When driving a 16Ω load, the maximum low level distortion is reduced to 0.50%.
Note 4. Tested at VCC equals nominal and measured in watts (rms).
Note 5. Measurement made with a 5µF capacitor from Pin1 to GND. Voltage at Pin14 is at a ripple
frequency of 60Hz.
Note 6. Unity gain occurs between 10 and 100MHz.
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