I have found that schematic.
On the VDD pin of the processor, there is an inductor (L1). Could someone let me know what is the role of the inductor there? Usually, reference diagrams on such kind of microchips do not include an inductor.
Also, should the decoupling capacitor C3 be after or before the inductor (the cap C4 on VDDIO is before the inductor compared to C3)?
Note: The schematic is a part from a breakout-board from Sparkfun. This sensor is an acceleration and gyro sensor. Communication to that sensor can be done via I2C or SPI protocol.
More info about the breakout can be found at:
And more information about the sensor at: