Real Time Clock (RTC) calculator
Enter the value:
error (PPM)
calculate
Second/day
calculate
Minutes/year
calculate
result
Operating temperature
Crystal frequency error (PPM)
error ( Second/day )
The frequency error (PPM) produced by the crystal temperature characteristic can be calculated using the formula: -0.042*(25-operating temperature)2.
The calculator converts parts per million (PPM) of clock accuracy into real-time accuracy expressed in seconds per day or minutes per year.
Input parameters: PPM, seconds/day or minutes/year, and click the Calculate" button to get other calculated values.The calculator can determine the crystal frequency error (PPM) caused by the crystal temperature characteristics; in addition, it also gives the equivalent error value in seconds/day. "
