LM4869 Overview
Description
The LM4869 features differential stereo inputs, BTL (bridgetied load) outputs, and four externally selectable fixed gains. Operating on a single 5V supply, the LM4869 delivers 1.2W and 1.9W (typ) of output power to an 8Ω and 4Ω BTL load (Note 1), respectively, with less than 1% THD+N.
Key Features
- differential stereo inputs, BTL (bridgetied load) outputs, and four externally selectable fixed gains
- The LM4869’s gain is selected using two digital inputs
- The nominal gain values are 6dB, 10dB, 15.6dB, and 21.6dB
- The LM4869 is designed for notebook and other handheld portable applications
- It delivers high quality output power from a surface-mount package and requires few external components
- Other features include an active-low micropower shutdown mode input and thermal shutdown protection
- Key Specifications j BTL output Power RL = 4Ω, VDD = 5.0V, and THD+N
