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Virtex-5 FPGA Data Sheet: DC and Switching Characteristics
DS202 (v5.3) May 5, 2010
Product Specification
17
Table 33: GTP_DUAL Tile User Clock Switching Characteristics(1)
Symbol
Description
Conditions
Speed Grade
Units
-3
-2
-1
FTXOUT
TXOUTCLK maximum frequency
375
320
MHz
FRXREC
RXRECCLK maximum frequency
375
320
MHz
TRX
RXUSRCLK maximum frequency
375
320
MHz
TRX2
RXUSRCLK2 maximum frequency
RXDATAWIDTH = 0
350
320
MHz
RXDATAWIDTH = 1
187.5
160
MHz
TTX
TXUSRCLK maximum frequency
375
320
MHz
TTX2
TXUSRCLK2 maximum frequency
TXDATAWIDTH = 0
350
320
MHz
TXDATAWIDTH = 1
187.5
160
MHz
Notes:
1.
Clocking must be implemented as described in UG196: Virtex-5 FPGA RocketIO GTP Transceiver User Guide
Table 34: GTP_DUAL Tile Transmitter Switching Characteristics
Symbol
Description
Min
Typ
Max
Units
FGTPTX
Serial data rate range
0.1
FGTPMAX
Gb/s
TRTX
TX Rise time
140
ps
TFTX
TX Fall time
120
ps
TLLSKEW
TX lane-to-lane skew(1)
855
ps
VTXOOBVDPP
Electrical idle amplitude
20
mV
TTXOOBTRANS
Electrical idle transition time
40
ns
TJ3.75
Total Jitter(2)
3.75 Gb/s
0.35
UI
DJ3.75
Deterministic Jitter(2)
0.19
UI
TJ3.2
Total Jitter(2)
3.20 Gb/s
0.35
UI
DJ3.2
Deterministic Jitter(2)
0.19
UI
TJ2.5
Total Jitter(2)
2.50 Gb/s
0.30
UI
DJ2.5
Deterministic Jitter(2)
0.14
UI
TJ2.0
Total Jitter(2)
2.00 Gb/s
0.30
UI
DJ2.0
Deterministic Jitter(2)
0.14
UI
TJ1.25
Total Jitter(2)
1.25 Gb/s
0.20
UI
DJ1.25
Deterministic Jitter(2)
0.10
UI
TJ1.00
Total Jitter(2)
1.00 Gb/s
0.20
UI
DJ1.00
Deterministic Jitter(2)
0.10
UI
TJ500
Total Jitter(2)
500 Mb/s
0.10
UI
DJ500
Deterministic Jitter(2)
0.04
UI
TJ100
Total Jitter(2)
100 Mb/s
0.02
UI
DJ100
Deterministic Jitter(2)
0.01
UI
Notes:
1.
Using same REFCLK input with TXENPMAPHASEALIGN enabled for up to four consecutive GTP_DUAL sites.
2.
Using PLL_DIVSEL_FB = 2, INTDATAWIDTH = 1.
3.
All jitter values are based on a Bit-Error Ratio of 1e–12.
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