cy28rs680-2 SpectraLinear Inc, cy28rs680-2 Datasheet - Page 12

• Manufacturer Part Number: cy28rs680-2
• Description: Clock Generator For Ati Rs5xx/6xx Chipsets
• Manufacturer: SpectraLinear Inc

Rev 1.0, November 22, 2006
AC Electrical Specifications
CPU outputs
T
V
L
T
Δ V
V
Δ V
T
T
SRC
T
T
T
T
T
T
T
L
T
T
ΔT
ΔT
V
V
V
V
V
V
ATIG
T
T
T
T
T
T
T
L
R
ACC
SKEW
DC
JCYC
DC
PERIOD
PERIODSS
PERIODAbs
PERIODSSAbs
SKEW
CCJ
ACC
R
RFM
DC
PERIOD
PERIODSS
PERIODAbs
PERIODSSAbs
SKEW
CCJ
ACC
DIFF
CM
HIGH
LOW
OX
OVS
UDS
RB
Parameter
R
F
/ T
/ T
DIFF
CM
F
F
Output Slew Rate
Differential Voltage
Long Term Accuracy
Any CPU to CPU Clock Skew
Change in VDIFF_DC Magnitude
Common Mode Voltage
Change in V
Duty Cycle
Cycle to Cycle Jitter
SRCT and SRCC Duty Cycle
100-MHz SRCT and SRCC Period
100-MHz SRCT and SRCC Period, SSC Measured at crossing point V
100-MHz SRCT and SRCC Absolute
Period
100-MHz SRCT and SRCC Absolute
Period, SSC
Any SRCT/C to SRCT/C Clock Skew
SRCT/C Cycle to Cycle Jitter
SRCT/C Long Term Accuracy
SRCT and SRCC Rise and Fall Times
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
ATIGT and ATIGC Duty Cycle
100-MHz ATIGT and ATIGC Period
100-MHz ATIGT and ATIGC Period,
SSC
100-MHz ATIGT and ATIGC Absolute
Period
100-MHz ATIGT and ATIGC Absolute
Period, SSC
Any ATIGT/C to ATIGT/C Clock Skew
ATIGT/C Cycle to Cycle Jitter
ATIGT/C Long Term Accuracy
CM
Description
(continued)
INFORMATION
ADVANCE
Measured @ test load using VOCM
±400 mV, 0.85 to 1.65
Measured at load single ended
Measured at crossing point V
Measured at load single ended
Measured at load single ended
Measured at load single ended
Measured at V
Measured at V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
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 7
Math averages Figure 7
See Figure 7. Measure SE
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
Measured at crossing point V
OH
R
= 0.525V
– T
F
)/(T
R
Condition
OX
OX
+ T
OL
F
= 0.175 to
)
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
OX
9.997001
9.997001
10.12800
9.872001
9.997001
9.997001
10.12800
9.872001
CY28RS680-2
–300
–150
–200
–300
–150
–300
Min.
1.05
–0.3
175
660
250
0.4
45
45
45
2
–
0
–
–
–
–
–
–
–
–
–
V
10.00300
10.05327
9.872001
10.17827
10.00300
10.05327
9.872001
10.17827
Page 12 of 16
HIGH
Max.
1.45
300
250
150
200
250
125
300
700
125
125
850
550
250
125
300
2.3
0.2
53
85
55
20
55
7
–
–
+ 0.3
V/ns
Unit
ppm
ppm
ppm
mV
mV
mV
mv
mv
ps
ps
ns
ns
ns
ns
ps
ps
ps
ps
ps
ns
ns
ns
ns
ps
ps
%
%
%
%
V
V
V
V
V