Freescale Semiconductor Technical Data
Document Number: MC34119 Rev. 3.0, 12/2006
Low Power Audio Amplifier
The 34119 ...
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 (2.7 mA Typ) for Battery Powered Applications Chip Disable Input to Power Down the IC Low Power--Down Quiescent Current (65 µA Typ) Drives a Wide Range of Speaker Loads (8.0 Ω and Up) Output Power Exceeds 250 mW with 32 Ω Speaker Low Total Harmonic Distortion (0.5% Typ) Gain Adjustable from <0 dB to >46 dB for Voice Band Requires Few External Components Pb-Free Packaging Designated by Suffix Code EF
34119
LOW POWER AUDIO AMPLIFIER
D SUFFIX EF SUFFIX (PB-FREE) 98ASB42564B 8-PIN SOICN
ORDERING INFORMATION
Device MC34119D/R2 MCZ34119EF/R2 Temperature Range (TA) -20°C to 70°C Package
8 SOICN
34199
Audio Input VIN FC1 4 3 6 5
CC
V01
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V02 8 2 FC2 1 7 GND CD Chip Disable
Figure 1. 34119 Simplified Application Diagram
Freescale Semiconductor, Inc. reserves the r...
