cy28551-3 Cypress Semiconductor Corporation., cy28551-3 Datasheet - Page 21

• Manufacturer Part Number: cy28551-3
• Description: Universal Clock Generator For Intel, Via And Sis
• Manufacturer: Cypress Semiconductor Corporation.

Document #: 001-05677 Rev. *D
AC Electrical Specifications
Crystal
T
T
T
T
L
CPU at 0.7V (SSC refers to –0.5% spread spectrum)
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
DC
PERIOD
R
CCJ
ACC
DC
PERIOD
PERIOD
PERIOD
PERIOD
PERIOD
PERIOD
PERIOD
PERIODSS
PERIODSS
PERIODSS
PERIODSS
PERIODSS
PERIODSS
PERIODSS
PERIODAbs
PERIODAbs
PERIODAbs
PERIODAbs
PERIODAbs
PERIODAbs
PERIODAbs
PERIODSSAbs
PERIODSSAbs
PERIODSSAbs
Parameter
/T
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
166-MHz CPUT and CPUC Period
200-MHz CPUT and CPUC Period
266-MHz CPUT and CPUC Period
333-MHz CPUT and CPUC Period
400-MHz CPUT and CPUC Period
100-MHz CPUT and CPUC Period, SSC Measured at crossing point V
133-MHz CPUT and CPUC Period, SSC Measured at crossing point V
166-MHz CPUT and CPUC Period, SSC Measured at crossing point V
200-MHz CPUT and CPUC Period, SSC Measured at crossing point V
266-MHz CPUT and CPUC Period, SSC Measured at crossing point V
333-MHz CPUT and CPUC Period, SSC Measured at crossing point V
400-MHz CPUT and CPUC Period, SSC Measured at crossing point V
100-MHz CPUT and CPUC Absolute
period
133-MHz CPUT and CPUC Absolute
period
166-MHz CPUT and CPUC Absolute
period
200-MHz CPUT and CPUC Absolute
period
266-MHz CPUT and CPUC Absolute
period
333-MHz CPUT and CPUC Absolute
period
400-MHz CPUT and CPUC Absolute
period
100-MHz CPUT and CPUC Absolute
period, SSC
133-MHz CPUT and CPUC Absolute
period, SSC
166-MHz CPUT and CPUC Absolute
period, SSC
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
@ 1 clock
Measured at crossing point V
@ 1 clock
Measured at crossing point V
@ 1 clock
Measured at crossing point V
@ 1 clock
Measured at crossing point V
@ 1 clock
Measured at crossing point V
@ 1 clock
Measured at crossing point V
@ 1 clock
Measured at crossing point V
@ 1 clock
Measured at crossing point V
@ 1 clock
Measured at crossing point V
@ 1 clock
Condition
DD
and 0.7V
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
@ 0.1s
@ 0.1s
@ 0.1s
@ 0.1s
@ 0.1s
@ 0.1s
@ 0.1s
@ 0.1s
@ 0.1s
@ 0.1s
@ 0.1s
@ 0.1s
@ 0.1s
@ 0.1s
@ 0.1s
DD
9.99900
7.49925
5.99940
4.99950
3.74963
2.99970
2.49975
9.99900
7.49925
5.99940
4.99950
3.74963
2.99970
2.49975
9.91400
7.41425
5.91440
4.91450
3.66463
2.91470
2.41475
9.91400
7.41425
5.91440
69.841
Min.
47.5
45
–
–
–
CY28551-3
10.0100
7.50075
6.00060
5.00050
3.75038
3.00030
2.50025
10.0100
7.50075
6.00060
5.00050
3.75038
3.00030
2.50025
10.0860
7.58575
6.08560
5.08550
3.83538
3.08530
2.58525
10.1363
7.62345
6.11576
Page 21 of 29
Max.
52.5
71.0
10.0
500
300
55
Unit
ppm
ns
ns
ps
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
%
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