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LM4931 Datasheet Audio Subsystem

Manufacturer: Texas Instruments

Overview: LM4931 www.ti.com SNAS251E – APRIL 2004 – REVISED MAY 2013 LM4931 Boomer™ Audio Power Amplifier Series Audio Subsystem with Mono High Efficiency Loudspeaker and Stereo Headphone Amplifiers Check for Samples:.

General Description

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

The LM4931 includes a high quality stereo DAC, voice band codec, a stereo headphone amplifier and a high-power high efficiency mono speaker amplifier.

It is primarily designed for demanding applications in mobile phones and other portable devices.

Key Features

  • 1.
  • 23 18-bit 44.1kHz or 48kHz Stereo DAC.
  • 16-bit 8kHz , 12kHz , 16kHz, or 24kHz Voice- Band Codec.
  • PLL for Operation from Common System Clocks.
  • Either I2C or SPI Compatible Serial Interface.
  • I2S Digital Audio Data Serial Interface.
  • PCM Voice Audio Data Serial Interface.
  • Differential Analog Microphone Input.
  • 26mW/Channel Stereo Headphone Amplifier.
  • 570mW Mono High Efficiency BTL 8Ω Amplifier.
  • 32-step Volume C.

LM4931 Distributor