CY28447 ETC, CY28447 Datasheet - Page 18

• Manufacturer Part Number: CY28447
• Description: Clock Generator
• Manufacturer: ETC

Rev 1.0, November 20, 2006
AC Electrical Specifications
T
T
ΔT
ΔT
V
V
V
V
V
V
PCI/PCIF at 3.3V
T
T
T
T
T
T
T
T
T
T
L
DOT96 at 0.7V
T
T
T
T
L
T
T
ΔT
ΔT
V
V
V
V
V
V
48_M at 3.3V
T
ACC
ACC
R
RFM
HIGH
LOW
OX
OVS
UDS
RB
DC
PERIOD
PERIODSS
PERIODAbs
PERIODSSAbs
HIGH
LOW
R
SKEW
CCJ
DC
PERIOD
PERIODAbs
CCJ
R
RFM
HIGH
LOW
OX
OVS
UDS
RB
DC
Parameter
R
F
R
F
/ T
/ T
/ T
F
F
F
SSCT and SSCC Rise and Fall Time
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 Measurement at 1.5V
Spread Disabled PCIF/PCI Period
Spread Enabled PCIF/PCI Period, SSC Measurement at 1.5V
PCIF and PCI high time
PCIF and PCI low time
PCIF/PCI rising and falling Edge Rate
Any PCI clock to Any PCI clock Skew
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 Measured at crossing point V
DOT96T/C Cycle to Cycle Jitter
DOT96T/C Long Term Accuracy
DOT96T and DOT96C Rise and Fall
Time
Rise/Fall Matching
Rise Time Variation
Fall Time Variation
Voltage High
Voltage Low
Crossing Point Voltage at 0.7V Swing
Maximum Overshoot Voltage
Minimum Undershoot Voltage
Ring Back Voltage
Duty Cycle
Description
(continued)
Measured from V
V
Determined as a fraction of
2*(T
Math averages Figure 17
Math averages Figure 17
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
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 from V
V
Determined as a fraction of
2*(T
Math averages Figure 17
Math averages Figure 17
See Figure 17. Measure SE
Measurement at 1.5V
Measured at crossing point V
See Figure 17. Measure SE
Measurement at 1.5V
OH
OH
R
R
= 0.525V
= 0.525V
– T
– T
F
F
)/(T
)/(T
R
R
Condition
+ T
+ T
OL
OL
F
F
= 0.175 to
)
= 0.175 to
)
OX
OX
OX
OX
OX
OX
29.99100
29.49100
29.49100
10.41354
10.16354
29.9910
–150
–150
Min.
–0.3
12.0
12.0
–0.3
175
660
250
175
660
250
1.0
45
45
45
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
CY28447
30.00900
30.15980
30.50900
30.65980
10.41979
10.66979
Page 18 of 21
V
V
Max.
HIGH
HIGH
700
125
125
850
550
500
500
300
250
300
900
125
125
850
550
0.3
0.2
4.0
0.3
0.2
20
55
55
20
55
–
–
–
–
–
–
+
+
V/ns
Unit
ppm
ppm
mV
mV
mV
mV
mV
mV
ps
ps
ps
ns
ns
ns
ns
ns
ns
ps
ps
ns
ns
ps
ps
ps
ps
%
%
%
%
%
V
V
V
V
V
V