NTE1117 Integrated Circuit Audio Power Amp, 2 Watt Description: The NTE1117 is a monolithic integrated audio amplifier in a 14–Lead DIP type plastic package designed for use as a low frequency class B amplifier with a wide range of supply voltage of 3V to 16V. Features: D Minimum Working Voltage of 3V D Low Quiescent Current D Low Number of External Components D Good Ripple Rejection D No Cross–Over Distortion D Output Power: PO = 2W at 12V – 8Ω PO = 1.6W at 9V – 4Ω PO = 1.2W at 9V – 8Ω Absolute Maximum Ratings: Supply Votlage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V Output Peak Current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A Power Dissipation (TA = +50°C), Ptot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.25W Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to 150°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to 150°C Thermal Resistance, Junction–to–Ambient, RthJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80°C/W Electrical Characteristics: (TA = +25°C unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit 3 – 16 V Supply Voltage VS Quiescent Output Voltage (Pin12) VO VS = 9V 4 4.5 5 V Quiescent Drain Current Id VS = 9V – 4 – mA Bias Current (Pin7) Ib VS = 9V – 0.1 – µA Output Power PO d = 10%, f = 1kHZ, Ω Rf = 120Ω VS = 12V, RL = 8Ω – 2 – W VS = 9V, RL = 4Ω – 1.6 – W VS = 9V, RL = 8Ω – 1.2 – W VS = 6V, RL = 4Ω – 0.75 – W VS = 3.5V, RL = 4Ω – 0.22 – W Electrical Characteristics (Cont’d): (TA = +25°C unless otherwise specified) Parameter Symbol Input Sensitivity Vi(rms) Input Sensitivity Vi(rms) Input Resistance Ri Frequency Response (–3dB) B Distortion d Test Conditions Min Typ Max Unit PO = 1.2W, VS = 9V, Ω f = 1kHZ, RL = 8Ω Rf = 33Ω Ω – 16 – mV Rf = 120Ω Ω – 60 – mV PO = 50W, VS = 9V, Ω f = 1kHZ, RL = 8Ω Rf = 33Ω Ω – 3.5 – mV Rf = 120Ω Ω – 12 – mV – 5 – MΩ VS = 9V, RL = 8Ω, Ω Rf = 120Ω CB = 680pF 25 to 7000 HZ CB = 220pF 25 to 20000 HZ PO = 500mW, VS = 9V, f = 1kHZ, RL = 8Ω Ω Rf = 33Ω – 0.8 – % Rf = 120Ω – 0.4 – % Voltage Gain (Open Loop) GV VS = 9V, f = 1kHZ, RL = 8Ω – 75 – dB Voltage Gain (Closed Loop) GV VS = 9V, f = 1kHZ, Ω RL = 8Ω Rf = 33Ω – 45 – dB Rf = 120Ω – 34 – dB – 3 – µV – 0.4 – nA Input Noise Voltage eN Input Noise Current iN VS = 9V, B = 22HZ to 22KHZ Signal–to–Noise Ratio S+N N VS = 9V, PO = 1.2W, Rf = 120Ω, R1 = 100KΩ, B = 22HZ to 22KHZ – 70 – dB Supply Voltage Rejection SVR VS = 9V, RL = 8Ω, Rf = 120Ω, f(ripple) = 100Hz, C6 = 50µF – 42 – dB Pin Connection Diagram Bootstrap 1 14 VCC Ripple Rejection 2 13 Compensation N.C. 3 12 Output Compensation 4 11 N.C. Feedback 5 10 GND N.C. 6 9 N.C. Input 7 8 GND (Substrate) 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