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LM4831 Datasheet Multimedia Computer Audio-chip

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LM4831 Multimedia puter Audio Chip November 1998 LM4831 Multimedia puter Audio.

General Description

The LM4831 is a monolithic integrated circuit that provides a stereo three input mixer, two stereo input analog multiplexer, a stereo line out and a dual 1W bridged audio power amplifier.

In addition, a low noise microphone preamp is included on-chip.

The LM4831 is ideal for multimedia puters since it incorporates an input mixer, analog multiplexer, and configurable stereo audio power amplifier, as well as a microphone preamp stage.

Key Features

  • an externally controlled, low-power consumption shutdown mode, as well as both headphone and docking station modes. To temporarily override the shutdown mode and allow audio signals to be amplified, the LM4831 provides four “beep” pins. Key Specifications n THD+N at 1W into 8Ω n Microphone Input Referred Noise n Supply Current - Bridged Mode n Shutdown Current 0.6% (typ) 10µV (typ) 16mA (typ) 2µA (typ) Features Stereo 1W audio power amplifier “Click and pop” suppression circuitry Stereo three.

LM4831 Distributor