CY28435
AC Electrical Specifications (continued)
Parameter
TCCJ
Description
CPUT/C Cycle to Cycle Jitter
Long Term accuracy
Condition
Min.
Max.
65
Unit
ps
Measured at crossing point VOX
–
–
LACC
Measured using frequency counter over
0.15seconds.
300
ppm
TR / TF
TRFM
CPUT and CPUC Rise and Fall Times Measured from VOL = 0.175 to
VOH = 0.525V
130
700
ps
%
Rise/Fall Matching
Determined as a fraction of
2*(TR – TF)/(TR + TF)
–
29
'TR
Rise Time Variation
–
–
125
ps
ps
mV
mV
mV
V
'TF
Fall Time Variation
125
VHIGH
VLOW
VOX
Voltage High
Math averages Figure 10
Math averages Figure 10
660
–150
250
–
850
Voltage Low
–
Crossing Point Voltage at 0.7V Swing
Maximum Overshoot Voltage
Minimum Undershoot Voltage
Ring Back Voltage
550
VOVS
VUDS
VRB
VHIGH + 0.3
–0.3
–
–
V
See Figure 10. Measure SE
0.2
V
SRC
TDC
SRCT and SRCC Duty Cycle
Measured at crossing point VOX
Measured at crossing point VOX
45
55
%
TPERIOD
100-MHz SRCT and SRCC Period
9.997001 10.00300 ns
9.997001 10.05327 ns
9.872001 10.12800 ns
9.872001 10.17827 ns
TPERIODSS
TPERIODAbs
100-MHz SRCT and SRCC Period, SSC Measured at crossing point VOX
100-MHz SRCT andSRCC Absolute Period Measured at crossing point VOX
TPERIODSSAbs 100-MHz SRCT and SRCC Absolute
Period, SSC
Measured at crossing point VOX
TSKEW
TCCJ
Any SRCT/C to SRCT/C Clock Skew
SRCT/C Cycle to Cycle Jitter
SRCT/C Long Term Accuracy
Measured at crossing point VOX
Measured at crossing point VOX
Measured at crossing point VOX
–
–
250
125
300
700
20
ps
ps
LACC
–
ppm
ps
TR / TF
TRFM
SRCT and SRCC Rise and Fall Times MeasuredfromVOL = 0.175 to VOH = 0.525V
130
–
Rise/Fall Matching
Determined as a fraction of
2*(TR – TF)/(TR + TF)
%
'TR
Rise TimeVariation
–
–
125
ps
ps
mV
mV
mV
V
'TF
Fall Time Variation
125
VHIGH
VLOW
Voltage High
Math averages Figure 10
Math averages Figure 10
660
–150
250
–
850
Voltage Low
–
VOX
Crossing Point Voltage at 0.7V Swing
Maximum Overshoot Voltage
Minimum Undershoot Voltage
Ring Back Voltage
550
VOVS
VHIGH + 0.3
VUDS
–0.3
–
–
V
VRB
See Figure 10. Measure SE
0.2
V
PCI/PCIF
TDC
PCI Duty Cycle
Measurement at 1.5V
Measurement at 1.5V
45
55
%
TPERIOD
TPERIODSS
TPERIODAbs
Spread Disabled PCIF/PCI Period
29.99100 30.00900 ns
29.9910 30.15980 ns
29.49100 30.50900 ns
29.49100 30.65980 ns
Spread Enabled PCIF/PCI Period, SSC Measurement at 1.5V
Spread Disabled PCIF/PCI Period Measurement at 1.5V
TPERIODSSAbs Spread Enabled PCIF/PCI Period, SSC Measurement at 1.5V
THIGH
PCIF and PCI high time
PCIF and PCI low time
Rising edge rate
Measurement at 2.4V
12.0
12.0
0.85
–
–
ns
ns
TLOW
Measurement at 0.4V
Edge Rate
Measured between 0.8V and 2.0V
6.0
V/ns
Rev 1.0,November 20, 2006
Page 18 of 22
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