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Details, datasheet, quote on part number:NTE745
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Datasheet text preview:
NTE745 Integrated Circuit Audio Amplifier, 500mW
Description: the NTE745 is a monolithic complementary power amplifier and preamplifier designed to deliver 1/2Watt into a loudspeaker with a 3.0mV(rms) typical input. Gain and bandwidth are externally adjustable. Typical applications include portable AMFM radios, tape recorders, phonographs, and intercoms. Features: D 1/2Watt Power Output (9.0 Vdc Supply, 8Ohm Load) D High Overall Gain3.0mV(rms) Sensitivity for 1/2Watt Output D Low ZeroSignal Current Drain4.0mAdc @ 9.0V typ D Low Distortion0.5% at 250mW typ Electrical Characteristics: (V+ = 9V, RL = 8, f = 1kHz, TA = +25°C unless otherwise specified)
Parameter Open Loop Voltage Gain Sensitivity Output Impedance (PowerAmplifier) Signal to Noise Ratio Total Harmonic Distortion Quiescent Output Voltage Output Power Current Drain Power Dissipation Symbol AVOL S ZO S/N THD VO PO ID PD THD 10% Zero Signal Zero Signal PO = 150mW, f = 300Hz to 10kHz PO = 250mW Test Conditions PreAmplifier, RL = 1.0k PowerAmplifier, RL = 16 PO = 500mW Min 500 Typ 270 360 3.0 0.5 55 0.5 V+/2 570 4.0 36 Max Unit V/V V/V mV(rms) W dB % Vdc mW mA mW
Pin Connection Diagram
GND 1 N.C. 2 Power Amp Output 3 VCC 4
8 Power Amp Input 7 GND 6 PreAmp Input 5 PreAmp Input
8
5
.260 (6.6)
1
4
.390 (9.9) Max .155 (3.93)
.300 (7.62)
.100 (2.54) .300 (7.62)
.145 (3.68)
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