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LM49100 Datasheet Mono Class Ab Audio Subsystem

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: .. June 2007 LM49100 Mono Class AB Audio Subsystem with a True-Ground Headphone Amplifier LM49100 Mono Class AB Audio Subsystem with a True-Ground Headphone.

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.

The LM49100 also has a stereo true-ground headphone amplifier capable of 50mW per channel of continuous average power into a 32Ω single-ended (SE) loads with 1% THD+N.

The LM49100 has three input channels.

Key Features

  • a 32-step digital volume control and ten distinct output modes. The mixer, volume control, and device mode select are controlled through an I2C compatible interface. Thermal overload protection prevent the device from being damaged during fault conditions. Superior click and pop suppression eliminates audible transients on power-up/down and during shutdown. Key Specifications.
  •  Power Output at VDD = 5V:   Speaker:   RL = 8Ω, THD+N ≤ 1%   Headphone (VDDHP = 2.8V):   RL = 32Ω, THD+N ≤ 1%.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
Texas Instruments Logo LM49100 Mono Class AB Audio Sub-System Texas Instruments

More Datasheets from National Semiconductor (now Texas Instruments)

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LM4913 2W Monaural/ 90mW Stereo Headphone Audio Amplifier
LM4914 1W Monaural/ 85mW Stereo Headphone Audio Amplifier
LM4915 Pseudo-Differential Mono Headphone Amplifier
LM49150 Mono Class D Audio Subsystem
LM4916 14mW Stereo Headphone Audio Amplifier
LM4917 Ground-Referenced / 95mW Stereo Headphone Amplifier

LM49100 Distributor