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W234 Datasheet, PDF (10/12 Pages) Cypress Semiconductor – Dual Direct Rambus Clock Generator
Table 13. Device Characteristics
Parameter
Description
tCYCLE
tJ
Clock Cycle Time
Cycle-to-Cycle Jitter at CLK/CLK#[6]
Total Jitter over 2, 3, or 4 Clock Cycles[6]
266-MHz Cycle-to-Cycle Jitter[7]
266-MHz Total Jitter over 2, 3, or 4 Clock Cycles[7]
VX,STOP
VX
VCOS
VOH
VOL
IOZ,STOP
DC
Output Voltage during Clk Stop (STOP#=0)
Differential Output Crossing-Point Voltage
Output Voltage Swing (p-p single-ended)[8]
Output High Voltage
Output Low voltage
Output Current during Clk Stop (STOP# = 0)
Output Duty Cycle over 10,000 Cycles
tDC,ERR
Output Cycle-to-Cycle Duty Cycle Error
tR,tF
Output Rise and Fall Times (measured at 20%–80% of output voltage)
tCR,CF
Difference between Output Rise and Fall Times on the Same Pin of a
Single Device (20%–80%)
Notes:
6. Output Jitter spec measured at tCYCLE = 2.5 ns.
7. Output Jitter Spec measured at tCYCLE = 3.75 ns.
8. VCOS = VOH–VOL.
Min.
2.5
-
-
-
-
1.1
1.3
1.1
-
0.6
-
40
-
300
-
W234
Max.
3.75
60
75
60
75
2.0
1.8
1.5
2.5
-
500
60
50
550
100
Unit
ns
ps
ps
ps
ps
V
V
V
V
V
µA
%tCYCLE
ps
ps
ps
Ordering Information
Ordering Code
Package
Name
W234
X
Document #: 38-00921-*A
Package Type
28-pin TSSOP (173 mils)
10