LM4859

Supply Voltage............................................... 6.0V
Storage Temperature ................−65°C to +150°C
Input Voltage .........................−0.3V to V_DD +0.3V
Power Dissipation (Note 3) ........Internally Limited
ESD Susceptibility (Note 4).......................... 2000V
ESD Susceptibility (Note 5)............................ 200V
Junction Temperature (TJ) ...........................150°C
Thermal Resistance
_JA (SPA28A) (Note 10)............................ 42°C/W
_JC (SPA28A) ..............................................3°C/W
_JA (TLA30CZA) (Note 12) ........................62°C/W

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 8 load and a stereo headphone amplifier delivering 33mW per channel into a 32 load. It integrates the audio amplifiers, volume control, mixer, power management control, and National 3D enhancement all into a single package. In addition, the LM4859 routes and mixes the stereo and mono inputs into 10 distinct output modes. The LM4859 is controlled through an I2C compatible interface. Other features include an ultra-low current shutdown mode and thermal shutdown protection.

Boomer audio power amplifiers are designed specifically to provide high quality output power with a minimal amount of external components.

The LM4859 is available in a 30bump TL package and a 28lead LLP package.