cy28src04 Cypress Semiconductor Corporation., cy28src04 Datasheet - Page 8

• Manufacturer Part Number: cy28src04
• Description: Pci-express Clock Generator
• Manufacturer: Cypress Semiconductor Corporation.

Document #: 001-00043 Rev. *A
AC Electrical Specifications
Test and Measurement Set-up
For Differential SRC Output Signals
The following diagram shows the test load configuration for the
differential CPU and SRC outputs.
SRC
T
T
T
T
T
T
T
T
L
T
T
'T
'T
V
V
V
V
V
V
T
T
DC
PERIOD
PERIODSS
PERIODAbs
PERIODSSAbs
SKEW
SKEW
CCJ
ACC
R
RFM
CCJ
LTJ
Parameter
HIGH
LOW
OX
OVS
UDS
RB
R
F
/ T
F
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 Measured at crossing point V
Any SRCT/C to SRCT/C Clock Skew
Any SRCS clock to Any SRCS 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
Cycle to Cycle Jitter
Long Term Jitter
IR E F
S R C C
S R C T
   :
Description
  :
(continued)
  :
Figure 3. 0.7V Load Configuration
  :
  :
PRELIMINARY
   :
   :
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
Measured from V
V
Determined as a fraction of
2*(T
Math averages Figure 3
Math averages Figure 3
See Figure 3. Measure SE
Measurement at 1.5V
Measurement at 1.5V@1us
OH
R
= 0.525V
– T
F
)/(T
2 p F
2 p F
Condition
R
M e a s u r e m e n t
M e a s u r e m e n t
+ T
OL
F
)
= 0.175 to
P o in t
P o in t
OX
OX
OX
OX
OX
OX
OX
OX
OX
9.997001 10.00300 ns
9.997001 10.05327 ns
10.12800 9.872001 ns
9.872001 10.17827 ns
–150
Min.
–0.3
175
660
250
45
–
–
–
–
–
–
–
–
–
-
-
CY28SRC04
V
Page 8 of 10
Max.
HIGH
TBD
250
250
125
300
700
125
125
850
550
350
0.3
0.2
55
20
–
–
+
Unit
ppm
mV
mv
mv
ps
ps
ps
ps
ps
ps
ps
ps
%
%
V
V
V