CY28301 Cypress Semiconductor, CY28301 Datasheet - Page 13

• Manufacturer Part Number: CY28301
• Description: Frequency Generator for Intel Integrated Chipset
• Manufacturer: Cypress Semiconductor

Group Skew and Jitter Limits
Document #: 38-07011 Rev. *C
Output Group
SDRAM
48MHz
APIC
3V66
CPU
REF
PCI
2.5V Clocking
Pin-Pin Skew Max.
Interface
175 ps
250 ps
175 ps
250 ps
250 ps
500 ps
N/A
Clock Output Wave
3.3V Clocking
Interface
1.25
2.0
0.4
T
RISE
2.4
1.5
0.4
Cycle-Cycle Jitter
Figure 1. Output Buffer
T
T
1000 ps
HIGH
250 ps
250 ps
500 ps
500 ps
500 ps
500 ps
RISE
Output
Buffer
T
FALL
T
HIGH
Test Load
Duty Cycle
T
PERIOD
T
T
Duty Cycle
LOW
Test Point
FALL
45/55
45/55
45/55
45/55
45/55
45/55
45/55
Duty Cycle
T
PERIOD
T
LOW
Nom. V
2.5V
3.3V
2.5V
3.3V
3.3V
3.3V
3.3V
DD
Measure Point
Skew, Jitter
CY28301
1.25V
1.25V
1.5V
1.5V
1.5V
1.5V
1.5V
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