DS922 Datasheet, PDF (44/77 Pages) Xilinx, Inc – DC and AC Switching Characteristics

Kintex UltraScale+ FPGAs Data Sheet: DC and AC Switching Characteristics
GTH Transceiver Specifications
The UltraScale Architecture and Product Overview (DS890) lists the Kintex UltraScale+ FPGAs that include
the GTH transceivers.
GTH Transceiver DC Input and Output Levels
Table 46 summarizes the DC specifications of the GTH transceivers in the Kintex UltraScale+ FPGAs.
Consult the UltraScale Architecture GTH Transceiver User Guide (UG576) for further details.
Table 46: GTH Transceiver DC Specifications
Symbol
DC Parameter
Conditions
Min
Typ
Max Units
DV_PPIN
V_IN
Differential peak-to-peak input
voltage (external AC coupled)
Single-ended input voltage.
Voltage measured at the pin
referenced to GND.
>10.3125 Gb/s
6.6 Gb/s to 10.3125 Gb/s
≤ 6.6 Gb/s
DC coupled
V_MGTAVTT = 1.2V
–
mV
–
mV
–
mV
–
V_MGTAVTT mV
V_CMIN
Common mode input voltage
DC coupled
V_MGTAVTT = 1.2V
–
2/3 V_MGTAVTT
–
mV
D_VPPOUT
Differential peak-to-peak output Transmitter output swing
voltage⁽¹⁾
is set to 1010
–
–
mV
When remote RX is
terminated to GND
V_MGTAVTT/2 – D_VPPOUT/4
mV
V_CMOUTDC
Common mode output voltage:
DC coupled (equation based)
When remote RX
termination is floating
V_MGTAVTT – D_VPPOUT/2
mV
When remote RX is
terminated to V_{RX_TERM(2)}
VMGTA
V
T
T
–
D----V---P---P-4--O----U----T-
–


V----M----G----T---A---V---T---T---2-–_{---V----R---X---_---T--E---R---M--}
mV
V_CMOUTAC Common mode output voltage: AC coupled (equation based)
V_MGTAVTT – D_VPPOUT/2
mV
R_IN
Differential input resistance
–
100
–
Ω
R_OUT
Differential output resistance
–
100
–
Ω
T_OSKEW
Transmitter output pair (TXP and TXN) intra-pair skew
(All packages)
–
–
10
ps
C_EXT
Recommended external AC coupling capacitor⁽³⁾
–
–
nF
Notes:
1. The output swing and pre-emphasis levels are programmable using the attributes discussed in the UltraScale Architecture
GTH Transceiver User Guide (UG576), and can result in values lower than reported in this table.
2. V_{RX_TERM} is the remote RX termination voltage.
3. Other values can be used as appropriate to conform to specific protocols and standards.
DS922 (v1.1) May 9, 2016
Advance Product Specification
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