Part LM4874
Description BTL Output Stereo Audio Amplifier
Manufacturer National Semiconductor
Size 869.79 KB
National Semiconductor
LM4874

Overview

The LM4874 features differential stereo inputs, BTL (bridgetied load) outputs, and four externally selectable fixed gains. Operating on a single 5V supply, the LM4874 delivers 1.2W, 1.9W, or 2.1W (typ) of output power to an 8Ω, 4Ω, or 3Ω BTL load (Note 1), respectively, with less than 1% THD+N.

  • 2W (typ) 0.1µA (typ) 62dB (typ) Features
  • n n n n n
  • Fully differential input and output Internal gain set: 6dB, 10dB, 15.6dB, and 21.6dB Improved ’click and pop’ suppression Thermal shutdown protection circuit Ultra low current micropower shutdown mode 3.0V to 5.5V operation Available in space-saving exposed-DAP TSSOP package Key Specifications j BTL output power