LM4859

LM4859 www.ti.com SNAS256E – MAY 2004 – REVISED MAY 2013 LM4859 Stereo 1.2W Audio Sub-system with 3D Enhancement Check for Samples: LM4859 FEATURES 1 2 Stereo Speaker Amplifier Stereo Headphone Amplifier Independent Left, Right, and Mono Volume Controls Texas Instruments 3D Enhancement I2C Compatible Interface Ultra Low Shutdown Current Click and Pop Suppression Circuit 10 Distinct Output Modes Thermal Shutdown Protection Available in DSBGA and UQFN packages APPLICATIONS Cell Phones PDAs Portable Gaming Devices Internet Appliances Portable DVD/CD/AAC/MP3 Players KEY SPECIFICATIONS POUT, Stereo Loudspeakers, 4Ω, 5V, 1% THD+N (LM4859SP), 1.6W (Typ) POUT, Stereo Loudspeakers, 8Ω, 5V, 1% THD+N, 1.2W (Typ) POUT, Stereo Headphones, 32Ω, 5V, 1% THD+N, 75mW (typ) POUT, Stereo Loudspeakers, 8Ω, 3.3V, 1% THD+N, 495mW (typ) POUT, Stereo Headphones, 32Ω, 3.3V, 1% THD+N, 33mW (typ) Shutdown Current, 0.06μA (typ) DESCRIPTION The LM4859 is an integrated audio sub-system designed for stereo cell phone applications. Operating on a 3.3V supply, it combines a stereo speaker amplifier delivering 495mW per channel into an 8Ω load and a stereo headphone amplifier delivering 33mW per channel into a 32Ω load. It integrates the audio amplifiers, volume control, mixer, power management control, and Texas Instruments 3D enhancement all into a single package. In addition, the LM4859 routes and mixes the stereo and mono inputs into 10 distinct output modes. ...