LM4921 Datasheet | National Semiconductor

LM4921 Low Voltage I2S 16-Bit Stereo DAC with Stereo Headphone Power Amplifiers and Volume Control November 2004 LM4921 Low Voltage I2S 16-Bit Stereo DAC with Stereo Headphone Power Amplifiers and Volume Control General Description The LM4921 bines 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 munication device applications. The LM4921 Features an I2S serial interface for the digital audio information and a 16-bit SPI serial interface for internal register control and munication. With AVDD and DVDD = 3.0VDC and driving a...