MCZ34119 Datasheet | Freescale Semiconductor

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 d B, 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 m A 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 m W with 32 Ω Speaker - Low Total Harmonic Distortion (0.5% Typ) - Gain Adjustable from <0 d B to >46 d B for Voice Band - Requires Few External ponents - Pb-Free Packaging Designated by Suffix Code EF 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 Audio Input VIN FC1 4 3 6 5 V01 .. V02 8 2 FC2 1 7 GND CD Chip Disable Figure 1. 34119 Simplified Application Diagram Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as may be required, to permit improvements in the design of its products. © Freescale Semiconductor, Inc., 2007. All rights reserved. INTERNAL BLOCK DIAGRAM INTERNAL BLOCK DIAGRAM VCC 7 VIN 4 FC1...