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Freescale Semiconductor Technical Data
Document Number: MC34119 Rev. 3.0, 12/2006
Low Power Audio Amplifier
The 34119 is a low power audio amplifier integrated circuit intended 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. Open loop gain is 80 dB, and the closed loop gain is set with two external resistors. A Chip Disable pin permits powering down and/or muting the input signal. Features • Wide Operating Supply Voltage Range (2.0 V to 16 V), Allows Telephone Line Powered Applications • Low Quiescent Supply Current (2.
MCZ34119 Datasheet
