Question
The ADXRS290 is a roll/pitch gyroscope. What should I do to obtain a low-noise yaw gyroscope?
Answer
For a roll/pitch/yaw (3-axis) solution, the customer needs to use at least 2 separate ADXRS290 gyroscopes, oriented such that the combined unit issensitive to rotation along Z axis. The scale factor (sensitivity) will depend on the specific module design and needs to be calculated by thecustomer. Combining outputs from multiple gyroscopes can be used to also obtain lower noise than a single gyroscope. For implementing this, the userwill have to implement an external FIFO and configure the part to generate a data ready interrupt on the SYNC/ASEL pin (pin 11) to synchronize theoutputs from multiple gyroscopes.