NTE1724

NTE1724 Integrated Circuit Audio Power Amplifier, 20W Description: This device is a monolithic integrated circuit and a power amplifier designed for Hi−Fi audio sets and in a 10 pin single in−line plastic package. NTE1724 can provide 20W (Typ) to 8Ω at 1% THD and ±22V supply voltage. Features: D High Output Power: 20W Typ (VCC = ±22V, Av = 40dB, f = 20Hz to 20kHz, RL = 8Ω, THD = 1%) 20W Typ (VCC = ±22V, Av = 27.5dB, f = 20Hz to 20kHz, RL = 8Ω, THD = 0.5%) D Low Distortion: 0.02% Typ (VCC = ±22V, Av = 40dB, f = 1kHz, RL = 8Ω, POUT = 5.0W) 0.005% Typ (VCC = ±22V, Av = 27.5dB, f = 1kHz, RL = 8Ω, POUT = 5.0W) D Wide Frequency Bandwidth: f = 250kHz (−3dB) Absolute Maximum Ratings: Supply Voltage (Quiescent), VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±30V Circuit Current, ICC(peak) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5A Package Dissipation (Ttab = +60°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30W Operating Temperature Range, Topt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +150°C Thermal Resistance Junction to Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3°C/W Recommended Operating Conditions: (TA = +25°C unless otherwise specified) Parameter Operating Supply Voltage Input Impedance Closed Loop Voltage Gain Load Impedance Symbol Test Conditions Min ±17 47 26 4 Typ ±22 56 40 8 Max ±23 100 − − Unit V kΩ dB Ω Electrical Characteristics: (VCC = ±22V, AV = 40dB, RL = 8Ω, TG = 600Ω, TA = +25°C unless otherwise specified) Parameter Output Offset Voltage Circuit Current Output Power Symbol V10 ICC PO Test Conditions No Signal No Signal THD = 0.5%, f = 20Hz to 20kHz Min −100 30 16 Typ 0 60 18 Max +100 120 − Unit mV mA W Electrical Characteristics (Cont’d): (VCC = ±22V, AV = 40dB, RL = 8Ω, TG = 600Ω, TA = +25°C unless otherwise specified) Parameter Open Loop Voltage Gain Total Harmonic Distortion Output Noise Voltage Power Band Width Supply Voltage Rejection Ratio Symbol AVO THD NV PBW SVR Test Conditions PO = 0.3W, f = 1kHz PO = 10W, f = 20Hz to 20kHz RG = 2.2kΩ, No Filter PO = 0.3W, −3dB RG = 2.2kΩ fripple = 100Hz Pin Connection Diagram (Front View) 10 (−) VCC 9 GND 8 NFB 7 Input 6 Phase Compensation 5 Phase Compensation 4 Muting 3 (+) VCC 2 N.C. 1 Output Min 65 − − − 50 Typ 75 0.1 0.4 250 56 Max − 0.3 1.0 − − Unit dB % mV kHz dB 1.260 (32.0) Max .945 (24.0) .107 (2.7) .052 (1.3) R 1 10 .512 (13.0)) .591 (15.0) Max .240 (6.1) Min .100 (2.54) .030 (.762) .001 (.025)