1.2W AUDIO POWER AMP S1A2201X01 INTRODUCTION 8−DIP−300 The S1A2201X01 is a monolithic integrated audio amplifier. It is designed for the audio frequency class B amplifier. FEATURES • Wide range of operating supply voltage: VCC = 3V − 14V • Medium output power • PO = 1.2W at VCC = 9V, RL = 8Ω, THD = 10% • Low quiescent circuit current (ICCQ = 4mA: Typ) • Good ripple rejection • Minimum number of external parts required ORDERING INFORMATION Device Package Operating Temperature S1A2201X01-D0B0 8−DIP−300 −20°C − + 70°C BLOCK DIAGRAM RIPPLE 8 BOOTSTRAP VCC 7 OUTPUT 6 5 4 – + 1 2 3 CB NF INPUT GND Figure 1. 1 S1A2201X01 1.2W AUDIO POWER AMP ABSOLUTE MAXIMUM RATINGS (Ta = 25°C) Characteristic Symbol Value Unit Supply Voltage VCC 16 V Output Peak Current IPK 1.5 A Power Dissipation PD 1.25 W Operating Temperature TOPR − 20 — + 70 °C Storage Temperature TSTG − 40 — + 150 °C ELECTRICAL CHARACTERISTICS ( Ta = 25°C, VCC = 9V, f = 1kHz, RG = 600Ω, RF = 120Ω, RL = 8Ω, unless otherwise specified ) Characteristic Quiescent Circuit Current Output Power Symbol ICCQ PO Test Conditions Min. Typ. Max. Unit VI = 0 − 4 12 mA VCC = 9V, RL = 4Ω, THD = 10% − 1.6 − VCC = 9V, RL = 8Ω, THD = 10% 0.9 1.2 − VCC = 6V, RL = 4Ω, THD = 10% − 0.75 − VCC = 6V, RL = 8Ω, THD =10% 0.4 0.5 − VCC = 12V, RL = 8Ω, THD =10% − 2 − W Total Harmonic Distortion THD PO = 500mW − 0.3 1.0 % Open Loop Voltage Gain GVO R F = 0Ω − 75 − dB Closed Loop Voltage Gain GVC R F = 120Ω 33 36 39 dB − 5 − MΩ − 0.3 1.0 mV Input Resistance Output Noise Voltage 2 − RI VNO R G = 10kΩ BW (−3dB) = 50Hz − 20kHz 1.2W AUDIO POWER AMP S1A2201X01 TEST CIRCUIT + C2 100µ/16V VCC R3 C4 0.1µ 56 6 7 3 2 RF 120 + C1 C6 100µ/10V R2 8 4 + 100µ/16V 5 S1A2201X01 R1 10K + + 1 INPUT C7 CB 1 OUTPUT C5 470µ/16V RL 8Ω C3 47µ/10V 0.1µ(M) Figure 2. 3 S1A2201X01 4 1.2W AUDIO POWER AMP