KA8602B

KA8602B INTRODUCTION LOW VOLTAGE AUDIO AMPLIFIER 8-DIP-300 The KA8602B is the audio power amplifier available for low voltages. KA8602B supplies differential outputs for maximizing output swing at low voltages. KA8602B doesn't need coupling capacitors to the speaker. The gain of this amp is controlled easily by two external resistors. FEATURES l l l l l l l l 8-SOP-225 Wide Supply Voltage (2 ~ 16V) Low Quiescent Supply Current (ICC = 2.7mA : Typ) Easy Gain Control Medium Output Power PO = 250mW at VCC = 6V, RL = 32Ω , THD = 10% Minimum External Parts Load Impedance Range (8Ω ~ 100Ω ) Low Distortion Mute Function (lCC = 65µA : Typ) ORDERING INFORMATION Device KA8602B KA8602BD Package 8-DIP-300 8-SOP-225 Operating Temperature - 20°C ~ + 70°C BLOCK DIAGRAM INPUT(-) 2 INPUT(+) 1 Amp1 3 R OUTPUT1 + R Amp2 6 OUTPUT2 + Vcc 4 BIAS CIRCUIT 7 MUTE 8 RIPPLE REJECTION 5 GND Fig. 1 KA8602B LOW VOLTAGE AUDIO AMPLIFIER PIN CONFIGURATION INPUT(+) 1 8 RIPPLE REJECTION INPUT(-) 2 7 MUTE KA8602B OUTPUT1 3 6 OUTPUT2 Vcc 4 5 GND Fig. 2 PIN DESCRIPTION Pin No Symbol Description Analog Ground for the amplifiers. A 1.0µF capacitor at this pin (with a 5.0µF 1 Input (+) capacitor at pin 8) provides 52dB (Typ) of power supply rejection. Turn-on time of the circuit is affected by the capacitor on this pin. This pin can be used as an alternative input. 2 3 4 5 6 Input (-) Output 1 VCC GND Output 2 Amplifier input. The input capacitor and resistor set low frequency rol...