Part Number
|
LM4857 |
Manufacturer
|
National Semiconductor |
Description
|
Stereo 1.2W Audio Sub-system |
Published
|
Mar 22, 2005 |
Detailed Description
|
LM4857 Stereo 1.2W Audio Sub-system with 3D Enhancement
June 2004
LM4857 Stereo 1.2W Audio Sub-system with 3D Enhancem...
|
Datasheet
|
LM4857
|
Overview
LM4857 Stereo 1.
2W Audio Sub-system with 3D Enhancement
June 2004
LM4857 Stereo 1.
2W Audio Sub-system with 3D Enhancement
General Description
The LM4857 is an integrated audio sub-system designed for stereo cell phone applications.
Operating on a 3.
3V supply, it combines a stereo speaker amplifier delivering 495mW per channel into an 8Ω load, a stereo headphone amplifier delivering 33mW per channel into a 32Ω load, a mono earpiece amplifier delivering 43mW into a 32Ω load, and a line output for an external powered handsfree speaker.
It integrates the audio amplifiers, volume control, mixer, power management control, and National 3D enhancement all into a single package.
In addition, the LM...
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