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.
Features
- an I2S serial interface for full range audio and an I2C or SPI compatible interface for control. The full range music path features an SNR of 85dB with an 18-bit 48kHz input. Boomer audio power amplifiers are designed specifically to provide high quality output power with a minimal amount of external components. Key Specifications.
- POUT, BTL, 8Ω, 3.3V, 1%.
- POUT H/P, 32Ω, 3.3V, 1%.
- POUT Mono Earpiece, 32Ω, 1%.
- Shutdown current.
- SNR (DAC + Amplifier)
520mW (typ) 36mW (typ.
LM4937_NationalSemiconductor.pdf
