cy28549 SpectraLinear Inc, cy28549 Datasheet - Page 18

• Manufacturer Part Number: cy28549
• Description: Clock Generator For Intel Ck410m
• Manufacturer: SpectraLinear Inc

Document #:xxx-xxxxx Rev **
AC Electrical Specifications
ΔT
ΔT
Note:
V
V
V
V
V
V
SRC at 0.8V
T
T
T
T
T
ODSSAbs
T
T
L
T
T
ΔT
ΔT
Tdrive
V
V
V
V
V
V
LCD 96_100M_SSC at 0.8V
T
T
T
T
T
ODSSAbs
T
Parameter
1. Measured with one REF on.
DC
PERIOD
PERIODSS
PERIODAbs
PERI-
SKEW
CCJ
ACC
R
RFM
DC
PERIOD
PERIODSS
PERIODAbs
PERI-
PERIOD
HIGH
LOW
OX
OVS
UDS
RB
HIGH
LOW
OX
OVS
UDS
RB
/T
R
F
R
F
F
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
SRCT and SRCC Duty Cycle
100-MHz SRCT and SRCC Period
100-MHz SRCT and SRCC Period,
SSC
100-MHz SRCT and SRCC Absolute
Period
100-MHz SRCT and SRCC Absolute
Period, SSC
Any SRCT/C to SRCT/C Clock Skew Measured at crossing point V
SRCT/C Cycle to Cycle Jitter
SRCT/C Long Term Accuracy
SRCT and SRCC Rise and Fall Time Measured from V
Rise/Fall Matching
Rise TimeVariation
Fall Time Variation
SRC output enable after PCI_STP#
de-assertion
Voltage High
Voltage Low
Crossing Point Voltage at 0.7V Swing
Maximum Overshoot Voltage
Minimum Undershoot Voltage
Ring Back Voltage
SSCT and SSCC Duty Cycle
100-MHz SSCT and SSCC Period
100-MHz SSCT and SSCC Period,
SSC
100-MHz SSCT and SSCC Absolute
Period
100-MHz SRCT and SRCC Absolute
Period, SSC
96-MHz SSCT and SSCC Period
Description
(continued)
PRELIMINARY
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
V
Determined as a fraction of
2*(T
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Math averages Figure 15
Math averages Figure 15
See Figure 15. Measure SE
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Math averages Figure 15
Math averages Figure 15
See Figure 15. Measure SE
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
OH
R
= 0.525V
– T
F
)/(T
R
+ T
OL
Condition
F
= 0.175 to
)
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
9.997001 10.00300
9.997001 10.05327
9.872001 10.12800
9.872001 10.17827
9.997001 10.00300
9.997001 10.05327
9.872001 10.12800
9.872001 10.17827
10.41354 10.41979
–150
–150
Min.
–0.3
–0.3
660
250
175
660
180
45
45
–
–
–
–
–
–
–
–
–
–
–
–
CY28549
V
V
Page 18 of 23
125
Max.
HIGH
HIGH
125
125
850
550
250
300
800
125
125
850
550
0.3
0.2
0.3
0.2
55
20
15
55
–
–
–
–
[1]
+
+
Unit
ppm
mV
mV
mV
mV
mV
mV
ps
ps
ns
ns
ns
ns
ps
ps
ps
ps
ps
ns
ns
ns
ns
ns
ns
%
%
%
V
V
V
V
V
V