CY28410
AC Electrical Specifications (continued)
Parameter
TSKEW
Description
Condition
Min.
Max.
500
Unit
ps
Any PCI clock to Any PCI clock Skew Measurement at 1.5V
–
–
TCCJ
PCIF and PCI Cycle to Cycle Jitter
Measurement at 1.5V
500
ps
DOT
TDC
DOT96T and DOT96C Duty Cycle
DOT96T and DOT96C Period
Measured at crossing point VOX
Measured at crossing point VOX
Measured at crossing point VOX
45
55
%
TPERIOD
10.41354 10.41979 ns
10.16354 10.66979 ns
TPERIODAbs
DOT96T and DOT96C Absolute
Period
TCCJ
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 Measured from VOL = 0.175 to VOH =
175
–
1100
20
ps
%
Times
0.525V
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
USB
TDC
Duty Cycle
Measurement at 1.5V
Measurement at 1.5V
Measurement at 1.5V
Measurement at 2.4V
Measurement at 0.4V
Measured between 0.8V and 2.0V
Measurement at 1.5V
45
55
%
TPERIOD
TPERIODAbs
THIGH
Period
20.83125 20.83542 ns
20.48125 21.18542 ns
Absolute Period
USB high time
USB low time
8.094
7.694
0.475
–
10.036
9.836
1.4
ns
ns
ns
ps
TLOW
TR / TF
TCCJ
Rise and Fall Times
Cycle to Cycle Jitter
USB Long Term Accuracy
350
LACC
–
100
ppm
REF
TDC
REF Duty Cycle
Measurement at 1.5V
45
55
%
TPERIOD
TPERIODAbs
TR / TF
REF Period
Measurement at 1.5V
69.8203 69.8622 ns
68.82033 70.86224 ns
REF Absolute Period
REF Rise and Fall Times
REF Cycle to Cycle Jitter
Measurement at 1.5V
Measured between 0.8V and 2.0V
Measurement at 1.5V
0.35
–
2.0
V/ns
ps
TCCJ
1000
ENABLE/DISABLE and SET-UP
TSTABLE Clock Stabilization from Power-up
TSS
–
10.0
0
1.8
–
ms
ns
ns
Stopclock Set-up Time
Stopclock Hold Time
TSH
–
Rev 1.0,November 21, 2006
Page 14 of 17
SPECTRALINEAR [ SPECTRALINEAR INC ]
