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LM4937

National Semiconductor
Part Number LM4937
Manufacturer National Semiconductor
Description Audio Sub-System
Published Feb 21, 2007
Detailed Description com LM4937 Audio Sub-System with OCL Stereo Headphone Output and RF Suppression February 2007 LM4937 ...
Datasheet PDF File LM4937 PDF File

LM4937
LM4937

Overview
...Audio Sub-System with OCL Stereo Headphone Output and RF Suppression General Description The LM4937 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.
It integrates the audio amplifiers, volume control, mixer, and power management control all into a single package.
In addition, the LM4937 routes and mixes the single-ended stereo and differential mono ...


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