CY28410
AC Electrical Specifications (continued)
Parameter
TRFM
Description
Rise/Fall Matching
Condition
Min.
Max.
Unit
Determined as a fraction of 2*(TR – TF)/(TR
+ TF)
–
20
%
'TR
Rise Time Variation
–
–
125
125
850
–
ps
ps
'TF
Fall Time Variation
VHIGH
VLOW
VOX
Voltage High
Math averages Figure 8
Math averages Figure 8
660
–150
250
mV
mV
mV
Voltage Low
Crossing Point Voltage at 0.7V Swing
Maximum Overshoot Voltage
550
VOVS
VHIGH
0.3
+
–
V
VUDS
VRB
Minimum Undershoot Voltage
Ring Back Voltage
–0.3
–
–
V
V
See Figure 8. Measure SE
0.2
SRC
TDC
SRCT and SRCC Duty Cycle
Measured at crossing point VOX
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
TPERIODSS
100-MHz SRCT and SRCC Period,
SSC
TPERIODAbs
100-MHz SRCT and SRCC Absolute Measured at crossing point VOX
Period
10.12800 9.872001 ns
9.872001 10.17827 ns
TPERIODSSAbs 100-MHz SRCT and SRCC Absolute Measured at crossing point VOX
Period, SSC
TSKEW
TCCJ
SRC Skew
Measured at crossing point VOX
Measured at crossing point VOX
Measured at crossing point VOX
–
–
–
250
125
300
ps
ps
SRCT/C Cycle to Cycle Jitter
SRCT/C Long Term Accuracy
LACC
ppm
TR / TF
SRCT and SRCC Rise and Fall Times Measured from VOL = 0.175 to VOH
0.525V
=
175
–
1100
20
ps
%
TRFM
Rise/Fall Matching
Determined as a fraction of 2*(TR – TF)/(TR
+ TF)
'TR
Rise Time Variation
–
–
125
125
850
–
ps
ps
'TF
Fall Time Variation
VHIGH
VLOW
VOX
Voltage High
Math averages Figure 8
Math averages Figure 8
660
–150
250
mV
mV
mV
Voltage Low
Crossing Point Voltage at 0.7V Swing
Maximum Overshoot Voltage
550
VOVS
VHIGH
0.3
+
–
V
VUDS
VRB
Minimum Undershoot Voltage
Ring Back Voltage
–0.3
–
–
V
V
See Figure 8. Measure SE
0.2
PCI/PCIF
TDC
PCI Duty Cycle
Measurement at 1.5V
Measurement at 1.5V
Measurement at 1.5V
45
55
%
TPERIOD
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
TPERIODSS
Spread Enabled PCIF/PCI Period,
SSC
TPERIODAbs
Spread Disabled PCIF/PCI Period
Measurement at 1.5V
Measurement at 1.5V
TPERIODSSAbs Spread Enabled PCIF/PCI Period,
SSC
THIGH
TLOW
PCIF and PCI high time
Measurement at 2.4V
11.5
11.5
0.5
–
–
ns
ns
ns
PCIF and PCI low time
Measurement at 0.4V
TR / TF
PCIF and PCI rise and fall times
Measured between 0.8V and 2.0V
2.0
Rev 1.0,November 21, 2006
Page 13 of 17
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