The QMI8658C is a complete 6D MEMS inertial measurement unit (IMU) with 9-axis sensor fusion and specified system level orientation accuracy. When using the QMI8658C in combination with the supplied XKF3 9D-sensor fusion, the system features an accurate ±3° pitch and roll orientation, and a ±5°yaw/heading typical specification. 

With tight board-level gyroscope sensitivity of ±3%, gyroscope noise density of 15 mdps/√Hz, and low latency, the QMI8658C is ideal for high performance consumer and for industrial applications. 

The QMI8658C incorporates a 3-axis gyroscope and a 3-axis accelerometer. It provides a UI interface (supporting I³C, I²C and 3-wire or 4-wire SPI) . 

▪ Low 15 mdps/√Hz gyroscope noise, low-latency, and wide bandwidth for performance applications such robotic vacuums, industrial tilt modules, pedestrian navigation and GNSS augmentation, 5G antenna stabilization, inertial navigation, and large industrial UAVs 

▪ Low Noise 200µg/√Hz accelerometer 

▪ Host (slave) interface supports MIPI™ I³C, I²C, and 3-wire or 4-wire SPI 

▪ Accelerometer and gyroscope sensors feature signal processing paths with digitally programmable data rates and filtering 

 ▪ Complete inertial measurement unit (IMU) with sensor fusion library with specified orientation accuracy of ±3º pitch and roll, ±5º yaw/heading 

 ▪ High-performance XKF3TM 6/9-axis sensor fusion with in-run calibration for correction of gyroscope bias drift over-temperature and lifetime 

▪ 3-axis gyroscope and 3-axis accelerometer in a small 2.5 x 3.0 x 0.86 mm 14-pin LGA package 

▪ Large 1536-byte FIFO can be used to buffer sensor data to lower system power dissipation 

 ▪ Motion on demand technology for polling-based synchronization 

 ▪ Large sensor dynamic ranges from ±16°/s to ±2048°/s for gyroscope and ±2 g to ±16 g for accelerometer 

▪ Low power modes for effective power management 

▪ Digitally programmable sampling rate and filters 

▪ Embedded temperature sensor 

▪ Wide extended operating temperature range (-40°C to 85°C)