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LM4931 - Audio Subsystem

LM4931 Description

LM4931 Audio Subsystem with Mono High Efficiency Loudspeaker and Stereo Headphone Amplifiers June 2004 LM4931 Audio Subsystem with Mono High Efficie.
The LM4931 is an integrated audio subsystem that supports voice and digital audio functions.

LM4931 Features

* 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 32

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Audio Subsystem National Semiconductor
National Semiconductor LM4931-like datasheet