Category: Hardware
Product Number: ADXL314
I am investigating improving a design using ADXL314WBCPZ-RL. Datasheet page 23, under power supply requirements, there is a mention "If additional decoupling is necessary, a resistor or ferrite bead (no larger than 100 Ohm)". How might I determine what value is suitable for a design? In this design 3.3V is the supply for VDDIO and Vs. Is the recommend approach to measure the ripple voltage from the 3.3V supply and try to tune the ferrite/resistor for this ripple?