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,
R
L
=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-IC [ UNISONIC TECHNOLOGIES ]
