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A project log for Rubidium Disciplined Real Time Clock

A Time Travel Beacon

oneohmoneohm 09/23/2016 at 04:300 Comments

This brings us to the DS3231 Precision Real Time Clock Module:

The Aging Compensation Register of this RTC module allows for fine tuning of the internal (temp. compensated) crystal oscillator by adding or subtracting small capacitors to the oscillator circuit. “One LSB represents one small capacitor to be switched in or out of the capacitance array at the crystal pins.”