NTE1029 Integrated Circuit Audio Power Amplifier, 3.5W Features: D SRPP Circuit (Shunt−Regulated Push−Pull Circuit) High Operating Stability on DC and AC D High Voltage Gain: 44dB (Typ) D Low Thermal Resistance: 10°C/W (Max) Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Power Dissipation (TC = +65°C), PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6W Output Current, IO(PEAK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.25A Operating Temperature Range (Note 1), Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −30° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +125°C Note 1. Value when attached to the heat sink plate (Θf ) = 10°C/W at PT = 2.7W. Electrical Characteristics: (VCC = 13.2V, RL = 4Ω, f = 1kHz unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit − 44 − dB 3.0 3.5 − W Voltage Gain Gv Output Power Pout THD = 10% Total Harmonic Distortion THD Pout = 500mW − 0.25 0.6 % Signal−to−Noise Ratio S/N Rg = 0, Pout = 3.5W − 85 − dB Input Impedance Rin 11 15 − kΩ Pin Connection Diagram Feedback 1 10 VCC Feedback 2 9 Output Feedback 3 8 GND Input 4 7 Feedback Bypass 5 6 Feedback 1.181 (30.0) .945 (24.0) .630 (16.0) 10 6 .315 (8.0) 1 .100 (2.54) 5 .166 (4.2) .217 (5.5) .449 (11.4)