CY28411-1
AC Electrical Specifications (continued)
Parameter
TCCJ
Description
SRCT/C Cycle to Cycle Jitter
SRCT/C Long Term Accuracy
Condition
Min.
Max.
125
Unit
ps
Measured at crossing point VOX
Measured at crossing point VOX
–
–
LACC
300
ppm
TR / TF
SRCT and SRCC Rise and Fall Times Measured from VOL = 0.175 to VOH
0.525V
=
175
–
700
20
ps
%
TRFM
Rise/Fall Matching
Determined as a fraction of
2 * (TR – TF)/(TR + TF)
'TR
Rise TimeVariation
–
–
125
125
850
–
ps
ps
'TF
Fall Time Variation
VHIGH
VLOW
VOX
Voltage High
Math averages Figure 14
Math averages Figure 14
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 14. Measure SE
0.2
PCI/PCIF
TDC
PCI Duty Cycle
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
TPERIODAbs
TPERIODSSAbs Spread Enabled PCIF/PCI Period, SSC Measurement at 1.5V
Spread Enabled PCIF/PCI Period, SSC Measurement at 1.5V
Spread Disabled PCIF/PCI Period Measurement at 1.5V
THIGH
TLOW
TR / TF
TSKEW
TCCJ
PCIF and PCI high time
Measurement at 2.4V
12.0
12.0
1.0
–
–
ns
ns
PCIF and PCI low time
Measurement at 0.4V
–
PCIF and PCI rise and fall times
Measured between 0.8V and 2.0V
4.0
500
500
V/ns
ps
Any PCI clock to Any PCI clock Skew Measurement at 1.5V
PCIF and PCI Cycle to Cycle Jitter
Measurement at 1.5V
–
ps
DOT
TDC
DOT96T and DOT96C Duty Cycle
DOT96T and DOT96C Period
Measured at crossing point VOX
Measured at crossing point VOX
45
55
%
TPERIOD
TPERIODAbs
TCCJ
10.41354 10.41979 ns
10.16354 10.66979 ns
DOT96T and DOT96C Absolute Period Measured at crossing point VOX
DOT96T/C Cycle to Cycle Jitter
DOT96T/C Long Term Accuracy
Measured at crossing point VOX
Measured at crossing point VOX
–
–
250
100
ps
LACC
ppm
TR / TF
DOT96T and DOT96C Rise and Fall
Times
Measured from VOL = 0.175 to VOH
0.525V
=
175
–
700
20
ps
%
TRFM
Rise/Fall Matching
Determined as a fraction of
2 * (TR – TF)/(TR + TF)
'TR
Rise Time Variation
–
–
125
ps
ps
mV
mV
mV
V
'TF
Fall Time Variation
125
VHIGH
VLOW
VOX
Voltage High
Math averages Figure 14
Math averages Figure 14
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 14. Measure SE
0.2
V
USB
TDC
Duty Cycle
Measurement at 1.5V
45
55
%
Rev 1.0,November 22, 2006
Page 15 of 18
SPECTRALINEAR [ SPECTRALINEAR INC ]
