LM4857 Overview
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.
Key Features
- 2 Stereo Speaker Amplifier
- Stereo Headphone Amplifier
- Mono Earpiece Amplifier
- Mono Line Output for External Handsfree Carkit
- Independent Left, Right, and Mono Volume Controls
- TI 3D Enhancement
- I2C Compatible Interface
- Ultra low Shutdown Current
- Click and Pop Suppression Circuit
- 16 distinct Output Modes
