LM4937 Description
The LM4937 is an integrated audio sub-system designed for mono voice, stereo music cell phones connecting to base band processors with mono differential analog voice paths. Operating on a 3.3V supply, it bines a mono speaker amplifier delivering 520mW into an 8Ω load, a stereo headphone amplifier delivering 36mW per channel into a 32Ω load, and a mono earpiece amplifier delivering 55mW into a 32Ω load. It integrates...
LM4937 Key Features
- POUT, BTL, 8Ω, 3.3V, 1%
- POUT H/P, 32Ω, 3.3V, 1%
- POUT Mono Earpiece, 32Ω, 1%
- Shutdown current
- SNR (DAC + Amplifier)
- 18-bit stereo DAC Multiple distinct output modes Mono speaker amplifier Stereo headphone amplifier Mono earpiece amplifi
- I2C/SPI (selectable) patible interface
- Ultra low shutdown current
- Click and Pop Suppression circuit