LM4921
Overview
The LM4921 combines a 16-bit resolution stereo I S 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.
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- 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 (Note 8) Unity-gain stable headphone amplifiers Available
