LM4931
Overview
The LM4931 is an integrated audio subsystem that supports voice and digital audio functions. The LM4931 includes a high quality stereo DAC, voice band codec, a stereo headphone amplifier and a high-power high efficiency mono speaker amplifier.
- 23 18-bit 44.1kHz or 48kHz Stereo DAC
- 16-bit 8kHz , 12kHz , 16kHz, or 24kHz Voice- Band Codec
- PLL for Operation from Common System Clocks
- Either I2C or SPI Compatible Serial Interface
- I2S Digital Audio Data Serial Interface
- PCM Voice Audio Data Serial Interface
- Differential Analog Microphone Input
- 26mW/Channel Stereo Headphone Amplifier
- 570mW Mono High Efficiency BTL 8Ω Amplifier
- 32-step Volume Control for Audio Output Amplifiers with 1.5dB Step Size.
