38.3.3.6 Oscillator Tolerance

The oscillator tolerance, df, around the nominal frequency of the oscillator, fnom, is defined in Equation 38-11.

Equation 38-12 through Equation 38-16 describe the conditions for the maximum tolerance of the oscillator.

Equation 38-11. Oscillator Tolerance
( 1 d f ) × f n o m F S Y S C L K ( 1 + d f ) × f n o m
Equation 38-12. Condition 1
d f N S J W 2 × 10 × N B T N T Q
Equation 38-13. Condition 2
d f min ( N P H S E G 1 , N P H S E G 2 ) 2 × ( 13 × N B T N T Q N P H S E G 2 )
Equation 38-14. Condition 3
d f D S J W 2 × 10 × D B T D T Q
Equation 38-15. Condition 4
d f min ( N P H S E G 1 , N P H S E G 2 ) 2 × ( ( 6 × D B T D T Q D P H S E G 2 ) × D B R P N B R P + 7 × N B T N T Q )
Equation 38-16. Condition 5
d f D S J W max ( 0 , ( N B R P D B R P 1 ) ) 2 × ( ( 2 × N B T N T Q × H N S E G P 2 ) × N B R P D B R P + D P H S E G 2 + 4 × D B T D T Q )