Kintex-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 53 summarizes the DC specifications of the clock input of the GTX transceiver. Consult the 7 Series FPGAs GTX/GTH
Transceivers User Guide ( UG476 ) for further details.
Table 53: GTX Transceiver Clock DC Input Level Specification
Symbol
V IDIFF
R IN
C EXT
DC Parameter
Differential peak-to-peak input voltage
Differential input resistance
Required external AC coupling capacitor
Min
250
Typ
100
100
Max
2000
Units
mV
Ω
nF
GTX Transceiver Switching Characteristics
Consult the 7 Series FPGAs GTX/GTH Transceivers User Guide ( UG476 ) for further information.
Table 54: GTX Transceiver Performance
Speed Grade
1.0V
0.9V
Symbol
Description
Output
Divider
-3
-2/-2L -1/-1M (1)
Package Type
-2L (2)
Units
FF
FB
FF
RF
FB
FF
RF
FB
FF
RF
FB
F GTXMAX (3)
F GTXMIN (3)
Maximum GTX transceiver data rate
Minimum GTX transceiver data rate
12.5
0.500
6.6
0.500
10.3125
0.500
6.6
0.500
8.0
0.500
6.6
0.500
6.6
0.500
6.6
0.500
Gb/s
Gb/s
1
2
3.2–6.6
1.6–3.3
Gb/s
Gb/s
F GTXCRANGE
CPLL line rate range
4
8
16
0.8–1.65
0.5–0.825
N/A
Gb/s
Gb/s
Gb/s
1
5.93–
8.0
5.93–
6.6
5.93–
8.0
5.93–
6.6
5.93–
8.0
5.93–
6.6
5.93–6.6
Gb/s
2
2.965–4.0
2.965–4.0
2.965–4.0
2.965–3.3
Gb/s
F GTXQRANGE1
QPLL line rate range 1
4
8
16
1.4825–2.0
0.74125–1.0
N/A
1.4825–2.0
0.74125–1.0
N/A
1.4825–2.0
0.74125–1.0
N/A
1.4825–1.65
0.74125–0.825
N/A
Gb/s
Gb/s
Gb/s
1
9.8–
12.5
N/A
9.8–
10.3125
N/A
N/A
N/A
Gb/s
2
4.9–6.25
4.9–5.15625
N/A
N/A
Gb/s
F GTXQRANGE2
QPLL line rate range 2 (4)
4
8
16
2.45–3.125
1.225–1.5625
0.6125–0.78125
2.45–2.578125
1.225–1.2890625
0.6125–
0.64453125
N/A
N/A
N/A
N/A
N/A
N/A
Gb/s
Gb/s
Gb/s
F GCPLLRANGE
GTX transceiver CPLL frequency
range
1.6–3.3
1.6–3.3
1.6–3.3
1.6–3.3
GHz
F GQPLLRANGE1 GTX transceiver QPLL frequency
range 1
5.93–8.0
5.93–8.0
5.93–8.0
5.93–6.6
GHz
DS182 (v2.8) March 4, 2014
Product Specification
49
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