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| NTE828 Integrated Circuit Audio Power Amp, 1.5W Description: The NTE828 is an audio amplifier in a 14-Lead DIP type package designed for use in medium power consumer applications. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between Pin2 and Pin6 will increase the gain to any value up to 200. The inputs are ground referenced while the output is automatically biased to one half the supply voltage. Features: D Minimum External Parts D Wide Supply Voltage Range D Ground Referenced Input D Excellent Supply Rejection D Variable Voltage Gain D Self-Centering Output Quiescent Voltage D Low Distortion D Low Voltage Operation, 4V Applications: D AM-FM Radio Amplifiers D Intercoms D TV Sound Systems D Portable Tape Player Amplifiers D Power Converters D Lamp Drivers D Ultrasonic Drivers D Line Drivers D Small Servo Drivers Absolute Maximum Ratings: Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22V Package Dissipation (Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3W Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.4V Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150C Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +70C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Lead Temperature (During Soldering, 10sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300C Note 1 Pin3, Pin4, Pin5, Pin10, Pin11, and Pin12 at +25C. Derate at 15C/W above +25C case. Electrical Characterisitics: (TA = 25C unless otherwise specified) Parameter Operating Supply Voltage Quiescent Current Output Power Symbol VS IQ POUT AV BW THD PSRR RIN IBIAS VS = 12V, Pin7 and Pin8 Open VS = 16V, VIN = 0 R1 = R2 = 180, THD = 10%, Note 2 VS = 12V, f = 1khz, 10F from Pin2 to Pin6 Bandwidth Total Harmonic Distortion Power Supply Rejection Ratio Input Resistance Input Bias Current VS = 12V, Pin2 and Pin6 Open VS = 12V, RL = 8, POUT = 500mW, f = 1kHz, Pin2 and Pin6 Open VS = 12V, f = 1kHz, CBYPASS = 10F, Pin2 and Pin6 Open, Referred to Output, Note 3 VS = 12V, RL = 8 VS = 6V, RL = 4 Test Conditions Min 5 - 1.5 0.6 23 - - - - 10 - Typ - 20 2.2 0.8 26 46 300 0.1 50 50 250 Max Unit 18 35 - - 30 - - 1.0 - - - V mA W W dB dB kHz % dB k nA Voltage Gain Note 2 The amplifier should be in high gain for full swing on higher supplies due to input voltage limitations. Note 3 If load and bypass capacitor are returned to VS rather than ground, PSRR is typically 30dB. Pin Connection Diagram Bypass 1 Gain 2 GND 3 GND 4 GND 5 Gain 6 (-) Input 7 14 8 14 VS 13 Vout 12 GND 11 GND 10 GND 9 Bootstrap 8 (+) Input 1 .785 (19.95) Max 7 .300 (7.62) .200 (5.08) Max .100 (2.45) .600 (15.24) .099 (2.5) Min |
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