LM4931 - Audio Subsystem

Product Overview

National Semiconductor

Part number	LM4931
Manufacturer	National Semiconductor
File Size	1.60 MB
Description	Audio Subsystem
Datasheet	LM4931 Datasheet
Additional preview pages of the LM4931 datasheet.

The LM4931 is an integrated audio subsystem that supports voice and digital audio functions.

an I2S serial interface for full range audio, a 16-bit PCM bi-directional serial interface for the voice band codec and an I2C/SPI compatible interface for control. The full range music path features an SNR of 86dB with an 18-bit 48kHz input. The headphone amplifier delivers at least 26mWRMS to a 32Ω single-ended stereo load with less than 1% distortion (THD+N) when AVDD = 3.3VDC. The mono speaker amplifier delivers up to 570mWRMS into an 8Ω load with less than 1% distortion when AVDD = 3.3VDC.

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Published: Mar 22, 2005 |