MC3419

www.DataSheet4U.com UTC MC3419 LINEAR INTEGRATED CIRCUIT LOW POWER AUDIO AMPLIFIER DESCRIPTION The UTC MC3419 is a low power audio amplifier integrated circuit, intended for the telephone applications, such as in speakerphones. It provides differential speaker outputs to maximize output swing at low supply voltages. Coupling capacitor to the speaker is not required. Open loop gain is 80dB, and the closed loop gain is set with two external resistors. A chips disable pin permits powering down and/or muting the input signal. SOP-8 DIP-8 FEATURES *Wide operating supply voltage: Vcc=2V~16V *Low quiescent supply current (Icc=2.7mA, typ) *Medium output power (Po=250mW at Vcc=6V, RL=32ohm, THD=10%) *Load impedance range (8 to 100ohm) *Low distortion *Mute function (Icc=65µA, typ) *Minimum number of external parts required TSSOP-8 *Pb-free plating product number: MC3419L BLOCK DIAGRAM UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R107-042,A UTC MC3419 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER Supply Voltage Output Current Maximum Input, Ripple Rejection, Mute Pin Voltage Applied Output Voltage (Output Pin When Disabled) Junction Temperature SYMBOL Vcc Io Vi Vo Tj VALUE -1 to +18 +-250 -1 to +1 -1 to +1 -55 to +150 UNIT V mA V V °C PIN CONFIGURATIONS PIN 1 NAME Mute DESCRIPTION 2 3 4 5 6 7 8 This pin can be used to power down the IC to converse power, or for muting, or both. When at a logic “LOW” (less than 0.8V), the IC is enabled for normal...