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| NTE990 Integrated Circuit Dual Audio Power Amplifier Description: The NTE990 is a monolithic dual power amplifier designed to deliver 2W/channel continuous into 8 loads. The NTE990 is designed to operate with a low number of external components, and still provide flexibility for use in stereo phonographs, tape records and AM-FM stereo receivers, etc. Each power amplifier is biased from a common internal regulator to provide high power supply rejection, and output Q point centering. The NTE990 is internally compensated for all gains greater than 10. Features: D D D D D D D D D D D D D D D 2W/channel -65 dB Ripple Rejection, Output Referred -65 dB Channel Separation, Output Referred Wide Supply Range: 6V to 24V Very Low Cross-Over Distortion Low Audio Band Noise AC Short Circuit Protected Internal Thermal Shutdown Multi-Channel Audio Systems Stereo Phonographs Tape Recorders and Players AM-FM Radio Receivers Servo Amplifiers Intercom Systems Automotive Products Applications: Absolute Maximum Ratings: Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26V Input Voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.7V 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 Electrical Characteristics: (VS = 20V, TA = +25C, RL = 8, AV = 50 (34 dB) unless otherwise specified) Parameter Total Supply Current Output Power Total Harmonic Distortion PO= 0W THD = 10% f = 1kHz, VS = 14V PO = 50mW/Ch PO = 500mW/Ch PO = 1W/Ch Output Swing Channel Separation RL = 8 CF = 50F, CIN = 0.1F, f = 1kHz, Output Referred CF = 50F, CIN = 0.1F, f = 120Hz, Output Referred VS = 20V, VO = 4Vrms VS = 7V, VO = 0.5Vrms VS = 20V, Vripple = 1Vrms VS = 7V, Vripple = 0.5Vrms Test Conditions Min - 2.0 - - - - -50 - -50 - - - - - - Open Loop VS = 20V - 9 - - - Typ 25 - 0.075 0.045 0.055 VS -6 -70 -60 -65 -40 2.5 0.8 70 15 50 4 10 2.0 65 1.0 Max 50 - - - - - - - - - - - - - - - 11 - - - Unit mA W/Ch % % % VP-P dB dB dB dB A mV dB mV nA M V V/s kHz A Power Supply Rejection Ratio Equivalent Noise Input RS = 0, CIN = 0.1F, BW = 20Hz to 20kHz, Output Noise Wideband RS = 0, CIN = 0.1F, AV = 200 Open Loop Gain Input Offset Voltage Input Bias Current Input Impedance DC Output Level Slew Rate Power Bandwidth Current Limit RS = 0, f = 100kHz, RL = 8 Note 1 For operation at ambient temperature greater than +25C, the NTE990 must be derated based on a maximum 150C junction temperature using a thermal resistance which depends upon device mounting techniques.. Pin Connection Diagram Bias 1 Output 1 2 GND 3 GND 4 GND 5 Input 1 6 Feedback 1 7 14 VCC 13 Output 2 12 GND 11 GND 10 GND 9 8 Input 2 Feedback 2 14 8 1 7 .785 (19.95) Max .300 (7.62) .200 (5.08) Max .100 (2.45) .600 (15.24) .099 (2.5) Min |
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