MC Devices
MC34119
LOW POWER AUDIO AMPLIFIER
Outline Drawing
DESCRIPTION
The MC34119CP is a low power
audio amplifier integrated circuit
intended
MC34119CP
(primarily) 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
are 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 mu ting
the input signal.
FEATURE
!
Wide operating supply voltage: Vcc=2~16V
!
Low quiescent supply current (Icc=2.7mA,typical)
!
Medium output power
Po=250mW at Vcc=6V,RL=32Ω, THD=10%
!
Load Impedance range (8 Ω to 100 Ω)
!
Low distortion
!
Mute function (Icc=65µA, typical)
!
Minimu m number of external parts required.
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