CY2213 Cypress Semiconductor Corp., CY2213 Datasheet - Page 8

• Manufacturer Part Number: CY2213
• Description: Lvpecl Outputs, Output Multiplier Select, OE, I2C
• Manufacturer: Cypress Semiconductor Corp.

Document #: 38-07263 Rev. *E
Figure 12 shows the definition of cycle-to-cycle duty cycle
error. Cycle-to-cycle duty cycle error is defined as the
difference between high-times of adjacent cycles over many
cycles (typically 12800 cycles at 400 MHz). Equal require-
ments apply to the low-times. t
output cycle-to-cycle duty cycle error.
CLK
CLKB
CLK
CLKB
CLK
CLKB
CLK
CLKB
t
CYCLE,i
DC
t
CYCLE
,
ERR
t
t
JC
DC,ERR
t
is defined as the clock
JP
t
= t
max
tCYCLE,i+1
Cycle i
Figure 12. Cycle-to-cycle Duty Cycle Error
= t
CYLCE,i
= t
CYCLE,max
t
JLT
PW+,i
Figure 11. Cycle-to-cycle Jitter
t
Figure 13. Long-term Jitter
tPW+,i+1
min
= t
Figure 10. Period Jitter
– t
– t
max
CYCLE,i+1 over many consecutive cycles
PW+,i+1
– t
– t
t
CYCLE, i+1
CYCLE, min. over many cycles
min over many cycles
over many consecutive cycles
Figure 13 shows the definition of long-term jitter error.
Long-term jitter is defined as the accumulated timing error over
many cycles (typically 12800 cycles at 400 MHz). It applies to
both rising and falling edges. t
jitter.
Cycle i+1
tCYCLE, i+1
tPW+,i
JLT
is defined as the long-term
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