Aurasemi – MEMS (AU1311) (10/2023)

The AU1311 is a low-noise, high-bandwidth, 3-axis digital accelerometer with full scale measurement at up to ±16g. The digital output data of the sensor is formatted as 16-bit two’s complement and is accessible through TDM/SPI/I2C interface. External host can configure the sensor by SPI/I2C interface. The AU1311 is well suited for hearables like smart earbuds. The device is in 2×2×0.86mm LGA package with 12 pins. It can operate in temperature range from -40℃ to 85℃.

Features:

• Full-scale up to ±16g
• Measurement range configurable
• TDM/SPI/I2C interfaces
• Signal bandwidth 3000Hz (TDM)
• Low-noise
• 16-bit data output

Applications:

• Bone vibration detection
• Beam forming enhancement
• Voice detection enhancement