LM4913 - National Semiconductor

LM4913 2W Monaural/ 90mW Stereo Headphone Audio Amplifier

The unity-gain stable LM4913 is both a mono differential output (for bridge-tied loads, or BTL) audio power amplifier and a single-ended (SE) stereo headphone amplifier. Operating on a single 5V supply, the mono BTL mode delivers 2W (typ) to a 4Ω load (Note 1) at 0.3% THD+N. In SE stereo mode, the amplifier will deliver 90mW to 32Ω loads. The LM4913 features.

Features

circuitry that suppresses output transients ("clicks and pops"). The LM4913 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. The LM4913 is pin and functionally compatible with the TPA0213. Other features include an active-low micro-power shutdown mode and thermal shutdown protection. The LM4913 is available a space efficient 10-lead exposedDAP TSSOP package. Note 1: When operating on a 5VDC supply, an LM4913MH that has been properly mounted to a circuit board will deliver .