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LM49100 - Mono Class AB Audio Sub-System

General Description

The LM49100 is a fully integrated audio subsystem capable of delivering 1.275W of continuous average power into a mono 8Ω bridged-tied load (BTL) with 1% THD+N and with a 5V power supply.

Key Features

  • 1.
  • 2 Mono and Stereo Inputs.
  • Thermal Overload Protection.
  • True-Ground Headphone Drivers.
  • I2C Control Interface.
  • Input Mute Attenuation.
  • 2nd Stage Headphone Attenuator.
  • 32-Step Digital Volume Control.
  • 10 Operating Modes.
  • Minimum External Components.
  • Click and Pop Suppression.
  • Micro-Power Shutdown.
  • Available in Space-Saving 3mm x 3mm 25-Bump csBGA Package.
  • RF Suppression KEY.

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Other Datasheets by Texas Instruments

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LM49100 www.ti.com SNAS392F – JUNE 2007 – REVISED MAY 2013 LM49100 Mono Class AB Audio Sub-System with a TrueGround Headphone Amplifier Check for Samples: LM49100 FEATURES 1 •2 Mono and Stereo Inputs • Thermal Overload Protection • True-Ground Headphone Drivers • I2C Control Interface • Input Mute Attenuation • 2nd Stage Headphone Attenuator • 32-Step Digital Volume Control • 10 Operating Modes • Minimum External Components • Click and Pop Suppression • Micro-Power Shutdown • Available in Space-Saving 3mm x 3mm 25-Bump csBGA Package • RF Suppression KEY SPECIFICATIONS • Power Output at VDD = 5V: – Loudspeaker (LS): – RL = 8Ω, THD+N ≤: 1% 1.275W – Headphone (VDDHP = 2.8V): – RL = 32Ω, THD+N ≤ 1%: 50mW • Shutdown current 0.