DUAL LOW VOLTAGE POWER AMP S1A2209A01 INTRODUCTION 8−DIP−300 The S1A2209A01 is a monolithic integrated audio amplifier in an 8-pin plastic dualinline package. It is designed for use in portable cassette tape players and radios. FEATURES • Wide range of operating supply voltage: VCC = 1.8V — 9V • Low crossover distortion • Low quiescent circuit current • Bridge/stereo configuration 8−SOP−225 ORDERING INFORMATION Device Package S1A2209A01-D0B0 8−DIP−300 S1A2209A01-S0B0 8−SOP−225 Operating Temperature −20°C — +70°C BLOCK DIAGRAM NF1 IN1 IN2 NF2 8 7 6 5 − + + − BIAS CIRCUIT 1 2 3 4 OUT1 VCC OUT2 GND 1 S1A2209A01 DUAL LOW VOLTAGE POWER AMP ABSOLUTE MAXIMUM RATINGS (Ta = 25°C) Characteristic Symbol Value Unit Supply Voltage VCC 15 V Output Peak Current IPK 1 A Power Dissipation PD at TAMB = 50°C 1.0 W at TCASE = 50°C 1.4 Operating Temperature TOPR − 20 — + 70 °C Storage Temperature TSTG − 40 — +150 °C ELECTRICAL CHARACTERISTICS (Ta = 25°C, Vcc = 6V, f = 1kHz, unless otherwise specified) Characteristic Symbol Test Conditions Min. Typ. Max. Unit Operating Voltage Vcc − 1.8 − 9 V Quiescent Circuit Current ICCQ VI = 0 − 6 − mA Closed Loop Voltage Gain Gvc Stereo − 40 − dB Bridge − 40 − dB Channel Balance CB Stereo −1 0 1 dB VCC = 6V, RL = 4Ω, THD=10% 0.4 0.65 − W VCC = 3V, RL = 4Ω, THD=10% − 0.11 − W VCC = 6V, RL = 8Ω, THD=10% 0.9 1.35 − W VCC = 3V, RL = 4Ω, THD=10% − 0.35 − W Stereo, RL = 8Ω, PO = 0.2W − 0.3 − % Bridge, RL = 8Ω, PO = 0.5W − 0.2 − % Stereo Output Power PO Bridge Total Harmonic Distortion THD Ripple Rejection Ratio RR Stereo, f =100Hz, C3 = 100uF 24 30 − dB Output Noise Voltage VNO Stereo, BW (-3dB) = 20Hz — 20kHz − 0.5 2.0 mV Cross Talk CT Stereo, f = 1kHz − 50 − dB Input Resistance RI 100 − − kΩ 2 − DUAL LOW VOLTAGE POWER AMP S1A2209A01 TEST CIRCUIT 1 STEREO INPUT1 INPUT2 10kΩ 100µF 8 1 OUTPUT1 - 3 4 470µF 100µ F 0.1µF 0.1µF RL 4.7Ω 5 + + 2 470µF 100µF 6 7 - Vcc 10kΩ OUTPUT2 RL 4.7Ω 3 S1A2209A01 DUAL LOW VOLTAGE POWER AMP TEST CIRCUIT 2 BRIDGE 10 µF INPUT 10k Ω 0.001 µ F 8 - 1 + 5 + 2 Vcc - 3 4 100 µF 0.1 µF 0.1µ F 4.7 Ω 4.7Ω RL 4 6 7