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LM49321

National Semiconductor
Part Number LM49321
Manufacturer National Semiconductor
Description Audio Sub-System
Published Sep 11, 2009
Detailed Description LM49321 Audio Sub-System with Stereo DAC, Mono Class AB Loudspeaker Amplifier, OCL/SE Stereo Headphone Output and RF Sup...
Datasheet PDF File LM49321 PDF File

LM49321
LM49321

Overview
LM49321 Audio Sub-System with Stereo DAC, Mono Class AB Loudspeaker Amplifier, OCL/SE Stereo Headphone Output and RF Suppression www.
DataSheet4U.
com LM49321 August 31, 2009 Audio Sub-System with Stereo DAC, Mono Class AB Loudspeaker Amplifier, OCL/SE Stereo Headphone Output and RF Suppression General Description The LM49321 is an integrated audio sub-system designed for mono voice, stereo music cell phones connecting to base band processors with mono differential analog voice paths.
Operating on a 3.
3V supply, it combines a mono speaker amplifier delivering 520mW into an 8Ω load, a stereo headphone amplifier delivering 36mW per channel into a 32Ω load, and a mono earpiece amplifier delivering 55mW into a 32Ω load.
The headphone amplifier can be configured for output capacitor-less (OCL) or single-ended (SE) mode.
It integrates the audio amplifiers, volume control, mixer, and power management control all into a single package.
In addition, the LM49321 routes and mixes the single-end...


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