Clock timing, System pll reference clock timing – Digi NS9215 User Manual

Page 511

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T I M I N G

Clock timing

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511

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C l o c k t i m i n g

All AC characteristics are measured with 10pF, unless otherwise noted.

System PLL
reference clock
timing

The diagram below pertains to clock timing.

Parm

Description

Min

Max

Unit

Notes

SC1

x1_sys_osc cycle time

25

50

ns

SC2

x1_sys_osc high time

(SC1/2) x 0.45

(SC1/2) x 0.55

ns

SC3

x1_sys_osc low time

(SC1/2) x 0.45

(SC1/2) x 0.55

ns

SC1

SC2

SC2

SC3

SC1

SC3

x1_sys_osc

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