LM4921
Overview
The LM4921 combines 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 communication device applications.
- 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 Amplifier
- Zero Crossing Detection for Silent Attenuation Steps
- 2.6VDC to 5.0VDC Digital Supply Voltage Range
- 2.6VDC to 5.5VDC Analog Supply Voltage Range (See (1))
- Unity-Gain Stable Headphone Amplifiers
- Available in the 20-bump DSBGA Package
