QUARTZ TUTORIAL#4- 32.768 kHz

The role of a 32.768 kHz crystal in electronic circuits

Using two crystals in the same design – one for the main high-frequency system clock and one for a standby/low-power clock – is a very common pattern in embedded and electronic systems.

Complementing the design aspects and rules that we covered in the 3 previous contributions of this series, we will focus on the role and design aspects for the 32.678 kHz crystal, also known as tuning fork crystal.