cy28549 SpectraLinear Inc, cy28549 Datasheet - Page 19

• Manufacturer Part Number: cy28549
• Description: Clock Generator For Intel Ck410m
• Manufacturer: SpectraLinear Inc

Document #:xxx-xxxxx Rev **
AC Electrical Specifications
T
T
T
ODSSAbs
T
L
T
T
ΔT
ΔT
V
V
V
V
V
V
PCI/PCIF at 3.3V
T
T
T
T
T
ODSSAbs
T
T
T
T
T
Tdrive
T
L
DOT96 at 0.8V
T
T
T
T
L
T
Parameter
PERIODSS
PERIODAbs
PERI-
CCJ
ACC
R
RFM
DC
PERIOD
PERIODSS
PERIODAbs
PERI-
HIGH
LOW
R
SKEW
delay
CCJ
ACC
DC
PERIOD
PERIODAbs
CCJ
ACC
R
HIGH
LOW
OX
OVS
UDS
RB
/T
/T
/T
R
F
F
F
F
96-MHz SSCT and SSCC Period,
SSC
96-MHz SSCT and SSCC Absolute
Period
96-MHz SRCT and SRCC Absolute
Period, SSC
SSCT/C Cycle to Cycle Jitter
SSCT/C Long Term Accuracy
SSCT and SSCC Rise and Fall Time Measured from V
Rise/Fall Matching
Rise TimeVariation
Fall Time Variation
Voltage High
Voltage Low
Crossing Point Voltage at 0.7V Swing
Maximum Overshoot Voltage
Minimum Undershoot Voltage
Ring Back Voltage
PCI Duty Cycle
Spread Disabled PCIF/PCI Period
Spread Enabled PCIF/PCI Period,
SSC
Spread Disabled PCIF/PCI Period
Spread Enabled PCIF/PCI Period,
SSC
PCIF and PCI high time
PCIF and PCI low time
PCIF/PCI rising and falling Edge Rate Measured between 0.8V and 2.0V
Any PCI clock to Any PCI clock Skew Measurement at 1.5V
Intentional PCI-PCI delay
PCI output enable after PCI_STP#
de-assertion
PCIF and PCI Cycle to Cycle Jitter
PCIF/PCI Long Term Accuracy
DOT96T and DOT96C Duty Cycle
DOT96T and DOT96C Period
DOT96T and DOT96C Absolute
Period
DOT96T/C Cycle to Cycle Jitter
DOT96T/C Long Term Accuracy
DOT96T and DOT96C Rise and Fall
Time
Description
(continued)
PRELIMINARY
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
V
Determined as a fraction of
2*(T
Measurement at 1.5V
Measurement at 1.5V
Measurement at 1.5V
Measurement at 1.5V
Measurement at 2.4V
Measurement at 1.5V
Measured at crossing point V
Measured from V
V
Measured at crossing point V
Measured at crossing point V
Math averages Figure 15
Math averages Figure 15
See Figure 15. Measure SE
Measurement at 1.5V
Measurement at 0.4V
Measurement at 1.5V
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
OH
OH
R
= 0.525V
= 0.525V
– T
F
)/(T
R
+ T
OL
OL
Condition
F
= 0.175 to
)
= 0.175 to
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
10.41354 10.47215
10.16354 10.66979
10.16354 10.72266
29.99100 30.00900
29.49100 30.50900
29.49100 30.65980
10.41354 10.41979
10.16354 10.66979
29.9910 30.15980
Min.
–150
12.0
–0.3
12.0
175
660
250
175
1.0
45
45
–
–
–
–
–
–
–
–
–
–
–
–
CY28549
Page 19 of 23
V
Max.
1000
HIGH
125
200
300
700
125
125
850
550
500
300
250
300
900
4.0
0.3
0.2
20
55
15
55
–
–
–
–
+
V/ns
Unit
ppm
ppm
ppm
mV
mV
mV
pS
ns
ns
ns
ps
ps
ps
ps
ns
ns
ns
ns
ns
ns
ps
ns
ps
ns
ns
ps
ps
%
%
%
V
V
V