LM4921 Overview
The LM4921 bines a 16-bit resolution stereo I2S input digital-to-analog converter (DAC) with a stereo headphone audio power amplifier. It is primarily designed for demanding applications in mobile phones and other portable munication device applications.
LM4921 Key Features
- 2 16-Bit Resolution Stereo DAC
- I2S Digital Audio Data Serial Interface
- SPI Serial Interface (Control Register)
- Volume Control (32 steps; 1.5 dB Increments)
- Up to 50mW/Channel Stereo Headphone
- Zero Crossing Detection for Silent Attenuation
- 2.6VDC to 5.0VDC Digital Supply Voltage Range
- 2.6VDC to 5.5VDC Analog Supply Voltage Range
- Unity-Gain Stable Headphone Amplifiers
- Available in the 20-bump DSBGA Package
