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| NTE7155 Integrated Circuit Dual Low-Voltage Power Amplifier Description: The NTE7155 is a monolithic integrated circuit in an 8-Lead DIP type package designed for use as a dual audio power amplifier in portable cassette players and radios. Features: D Supply Voltage Down To 1.8V D Low Crossover Distortion D Low Quiescent Current D Bridge or Stereo Configuration Absolute Maximum Ratings: Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Peak Output Current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1A Total Power Dissipation, PD TA = +50C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0W TC = +50C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4W Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +150C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +150C Thermal Resistance, Junction-to-Ambient, RthJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100C/W Thermal Resistance, Junction-to-Case (Pin4), RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70C/W Electrical Charactgeristics: (VS = 6V, TA = +25C unless otherwise specified) Parameter Stereo Supply Voltage Quiescent Output Voltage Quiescent Drain Current Input Bias Current VS VO VS = 3V ID IB 1.8 - - - - - 2.7 1.2 6 100 15 - - 9 - V V V mA nA Symbol Test Conditions Min Typ Max Unit Electrical Charactgeristics (Cont'd): (VS = 6V, TA = +25C unless otherwise specified) Parameter Stereo (Cont'd) Output Power (Each Channel) (f = 1kHz, d = 10%) PO RL = 32 VS = 9V VS = 6V VS = 4.5V VS = 3V VS = 2V RL = 16 RL = 8 RL = 4 VS = 6V VS = 9V VS = 6V VS = 6V VS = 4.5V VS = 3V Distortion (f = 1kHz) d RL = 32, PO = 40mW RL = 16, PO = 75mW RL = 8, PO = 150mW Closed Loop Voltage Gain Channel Balance Input Resistance Total Input Noise Supply Voltage Rejection Channel Separation Bridge Supply Voltage Quiescent Drain Current Output Offset Voltage (Between Outputs) Input Bias Current Output Power (f = 1kHz, d = 10%) VS ID VOS IB PO RL = 32 VS = 9V VS = 6V VS = 4.5V VS = 3V VS = 2V RL = 16 VS = 9V VS = 6V VS = 3V RL = 8 VS = 6V VS = 4.5V VS = 3V RL = 4 VS = 4.5V VS = 3V VS = 2V RL = RL = 8 1.8 - - - - 320 - 50 - - - - 900 - - - 200 - - 6 - 100 1000 400 200 65 8 2000 800 120 1350 700 220 1000 350 80 15 9 50 - - - - - - - - - - - - - - - V mA mV nA mW mW mW mW mW mW mW mW mW mW mW mW mW mW GV GV RI eN SVR CS f = 1kHz RS = 10k B = Curve A B = 22Hz to 22kHz f = 100Hz, C1 = C2 = 100F f = 1kHz f = 1kHz - 90 - 15 - 170 - 300 450 - - - - - 36 - 100 - - 24 - 300 120 60 20 5 220 1000 380 650 320 110 0.2 0.2 0.2 39 - - 2.0 2.5 30 50 - - - - - - - - - - - - - - 41 1 - - - - - mW mW mW mW mW mW mW mW mW mW mW % % % dB dB k V V dB dB Symbol Test Conditions Min Typ Max Unit Electrical Charactgeristics (Cont'd): (VS = 6V, TA = +25C unless otherwise specified) Parameter Bridge (Cont'd) Distortion Closed Loop Voltage Gain Input Resistance Total Input Noise Supply Voltage Rejection Power bandwidth (-3dB) d GV RI eN SVR B RL = 8, PO = 0.5W, f = 1kHz f = 1kHz f = 1kHz RS = 10k f = 100Hz RL = 8, PO = 1W B = Curve A B = 22Hz to 22kHz - - 100 - - - - 0.2 39 - 2.5 3.0 40 120 - - - - - - - % dB k V V dB kHz Symbol Test Conditions Min Typ Max Unit Pin Connection Diagram Output 1 1 Supply Voltage 2 Output 2 3 GND 4 8 (-) Input 1 7 (+) Input 1 6 (+) Input 2 5 (-) Input 2 8 5 .260 (6.6) Max 1 4 .430 (10.92) Max .200 (5.08) .300 (7.62) .100 (2.54) .300 (7.62) .125 (3.18) Min |
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