LM4934

Analog Supply Voltage............................... 6.0V
Digital Supply Voltage................................ 6.0V
Storage Temperature........... -65°C to +150°C
Input Voltage...................... -0.3V to VDD +0.3V
Power Dissipation (Note 3) ....Internally Limited
ESD Susceptibility (Note 4) ......................2000V
ESD Susceptibility(Note 5)......................... 200V
Junction Temperature ............................150°C
Thermal Resistance
JA (WLA42) .........................................61°C/W
See AN-1279


Description

The LM4934 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 520mW per channel into an 8Ω load, a stereo headphone amplifier delivering 36mW per channel into a 32Ω load, a mono earpiece amplifier delivering 55mW into a 32Ω load, and a line output for an external powered handsfree speaker. It integrates the audio amplifiers, volume control, mixer, power management control, and National 3D enhancement all into a single package. In addition, the LM4934 routes and mixes the stereo and mono inputs into multiple distinct output modes. 

The LM4934 features an I2S serial interface for full range audio and an I2C/SPI compatible interface for control. Boomer audio power amplifiers are designed specifically to provide high quality output power with a minimal amount of external components.