XC4VFX20 XILINX [Xilinx, Inc], XC4VFX20 Datasheet - Page 18

• Manufacturer Part Number: XC4VFX20
• Description: DC and Switching Characteristics
• Manufacturer: XILINX [Xilinx, Inc]

Table 26: RocketIO Transmitter Switching Characteristics
DS302 (v3.2) April 10, 2008
Product Specification
Notes:
1.
2.
3.
Serial data rate, -10
Serial data rate, -11
TX Jitter Generation
TX rise time
TX fall time
TXUSRCLK frequency
TXUSRCLK2 frequency
TXUSRCLK duty cycle
TXUSRCLK2 duty cycle
Differential output skew
Electrical idle transition time
UI = Unit Interval.
Default attributes, measured at 2.5 Gb/s.
Peak-to-Peak values measured relative to 1e-12 Error rate. Default attributes. TX feedback divider (TXPLLNDIVSEL) = 10.
Description
(2)
(2)
R
(3)
TXOOB
Symbol
T
T
T
F
F
T
T
TX2DC
ISKEW
TXDC
RJ
DJ
RJ
DJ
RJ
DJ
RJ
DJ
RJ
DJ
RJ
DJ
RJ
DJ
TJ
TJ
TJ
TJ
TJ
TJ
TJ
GTX
GTX
RTX
FTX
Transition
For slower speed grades =
MaxDataRate/32
PRBS31
PRBS7
PRBS7
PRBS7
PRBS7
PRBS7
PRBS7
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Data
Virtex-4 FPGA Data Sheet: DC and Switching Characteristics
Conditions
20% – 80%
20% – 80%
Rate (Gb/s)
3.125
0.622
4.25
1.25
6.5
5.0
2.5
0.622
0.622
Min
40
40
Typ
90
90
12
15
3.125
Max
0.50
0.35
0.30
0.45
0.30
0.25
0.40
0.25
0.21
0.28
0.14
0.14
0.25
0.18
0.12
0.12
0.10
0.06
0.08
0.06
0.04
250
250
6.5
60
60
20
Units
Gb/s
Gb/s
UI
MHz
MHz
ps
ps
ps
ns
%
%
(1)
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