LM49270 Overview
The LM49270 is a fully integrated audio subsystem designed for stereo multimedia applications. The LM49270 bines a 2.2W stereo Class D amplifier with a 155mW stereo headphone amplifier, volume control, headphone sense, and National’s unique 3D sound enhancement into a single device. The LM49270 uses flexible I2C control interface for multiple application requirements.
LM49270 Key Features
- Stereo Class D Amplifier Efficiency: VDD = 3.3V, 450mW/Ch into 8Ω VDD = 5V, 1W/Ch into 8Ω
- Quiescent Power Supply Current, VDD = 3.3V Speaker Mode Headphone Mode (OCL)
- Power Output/Channel, VDD = 5V Class D Speaker amplifier
- Shutdown current
