BL8602

www.DataSheet4U.com BL8602 BL8602 Low Power Audio Amplifier DESCRIPTION The BL8602 is a low power audio amplifier integrated circuit intended(primarily) for telephone applications, such as in speakerphones. It provides differential speaker outputs to maximize output swing at low supply voltages(2.0 V minimum).Coupling capacitors to the speaker are not required. The gain of this amplifier is controlled easily by two external resistors. FEATURES * Wide operating supply voltage: Vcc=2V~16V * Low quiescent supply current(Icc=2.2mA,typ) * Medium output power(Po=250mW at Vcc=6V, RL=32ohm,THD≤10%) * Load impedance range : 8~100ohm * Mute function (Icc=55uA, typ) * Minimum number of external parts required * Low distortion BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS(Ta=25℃) PARAMETER Supply Voltage Output Current Maximum Input,Ripple Rejection, Mute Pin Voltage Applied Output Voltage( Output Pin When Disabled) Temperature Junction SYMBOL Vcc Io Vi(max) Vo Tj VALUE -1~18 ±250 -1~Vcc+1 -1~Vcc+1 -55~150 UNIT V MA V V ℃ http://www.belling.com.cn -1- 8/15/2006 Wrote by 2006 Total 4 Pages BL8602 PIN CONNECTIONS PIN FUNCTION DESCRIPTION Symbol FC1 Pin 1 Description Analog ground for amplifiers. A 1.0uF capacitor at this pin (with a 5.0uF capacitor at Pin 2) provides (typically) 52dB 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 alternate input. Amplifier input .The input capacitor and resistor set low frequency ...