I'm building a small board that uses the MMA8453Q Freescale Accelerometer.
The datasheet requires a 4.7μF decouple capacitor on the \$V_{dd}\$ pin. I only have 3.3μF or 6.8μF capacitors on hand. Could I use them instead? What's the risk of using a different value decoupling capacitor?
Large decoupling capacitors such as those are meant to compensate for larger sags in the supply of the chip. Using a larger value will not hurt.
Don't skimp out on the smaller value decoupling capacitor though, since it's used to filter high-frequency noise from/on the supply; use as close to the prescribed value as possible, otherwise use a 100nF.
