CY28410 Cypress Semiconductor, CY28410 Datasheet - Page 12

• Manufacturer Part Number: CY28410
• Description: Clock Generator for Intel Grantsdale Chipset
• Manufacturer: Cypress Semiconductor

Document #: 38-07593 Rev. *C
AC Electrical Specifications
Crystal
T
T
T
T
L
CPU at 0.7V
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
∆T
∆T
V
DC
PERIOD
R
CCJ
ACC
DC
PERIOD
PERIOD
PERIOD
PERIOD
PERIODSS
PERIODSS
PERIODSS
PERIODSS
PERIODAbs
PERIODAbs
PERIODSSAbs
PERIODSSAbs
PERIODSSAbs
PERIODSSAbs
PERIODSSAbs
SKEW
CCJ2
CCJ
SKEW2
R
RFM
HIGH
Parameter
R
F
/ T
/ T
F
F
XIN Duty Cycle
XIN Period
XIN Rise and Fall Times
XIN Cycle to Cycle Jitter
Long-term Accuracy
CPUT and CPUC Duty Cycle
100-MHz CPUT and CPUC Period
133-MHz CPUT and CPUC Period
200-MHz CPUT and CPUC Period
266-MHz CPUT and CPUC Period
100-MHz CPUT and CPUC Period,
SSC
133-MHz CPUT and CPUC Period,
SSC
200-MHz CPUT and CPUC Period,
SSC
266-MHz CPUT and CPUC Period,
SSC
100-MHz CPUT and CPUC Absolute
period
133-MHz CPUT and CPUC Absolute
period
100-MHz CPUT and CPUC Absolute
period, SSC
133-MHz CPUT and CPUC Absolute
period, SSC
200-MHz CPUT and CPUC Absolute
period, SSC
266-MHz CPUT and CPUC Absolute
period, SSC
400-MHz CPUT and CPUC Absolute
period, SSC
Any CPUT/C to CPUT/C Clock Skew,
SSC
CPU2_ITP Cycle to Cycle Jitter
CPUT/C Cycle to Cycle Jitter
CPU2_ITP to CPU0 Clock Skew
CPUT and CPUC Rise and Fall Times Measured from V
Rise/Fall Matching
Rise Time Variation
Fall Time Variation
Voltage High
Description
The device will operate reliably with input
duty cycles up to 30/70 but the REF clock
duty cycle will not be within specification
When XIN is driven from an external clock
source
Measured between 0.3V
As an average over 1-µs duration
Over 150 ms
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
0.525V
Determined as a fraction of 2*(T
+ T
Math averages Figure 8
F
)
Condition
OL
= 0.175 to V
DD
and 0.7V
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
R
OH
– T
=
F
DD
)/(T
R
9.997001 10.00300
7.497751 7.502251
4.998500 5.001500
3.748875 3.751125
9.997001 10.05327
7.497751 7.539950
4.998500 5.026634
3.748875 3.769975
9.912001 10.08800
7.412751 7.587251
9.912001 10.13827
7.412751 7.624950
4.913500 5.111634
3.663875 3.854975
2.414250 2.598317
69.841
Min.
47.5
175
660
43
–
–
–
–
–
–
–
–
–
–
CY28410
Page 12 of 18
Max.
1100
52.5
71.0
10.0
500
300
100
125
115
150
125
125
850
57
20
Unit
ppm
mV
ns
ns
ns
ns
ns
ns
ns
ps
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ps
ps
ps
ps
ps
ps
ps
%
%
%