Xilinx Virtex UltraScale+ FPGAs User Manual

Table 73: GTM Transceiver Dual Pin Descriptions (cont'd)
Pins Dir Description
MGTVCCAUX In(Pad) MGTVCCAUX is the auxiliary analog LCPLL voltage supply for the
transceivers. Most packages have multiple groups of power supply
connections in the package for MGTVCCAUX. Refer to the package
pin definitions to identify in which power supply group a specific
GTM transceiver Dual is located. The nominal voltage is 1.8 VDC.
VCCINT_GT
In(Pad) VCCINT_GT is the supply voltage for digital circuits in GTM
transceivers. Most packages have multiple groups of power supply
connections for VCCINT_GT. Refer to the package pin definitions to
identify the location of the power supply group for a specific GTM
transceiver Dual. The nominal voltage is 0.9 VDC or 0.85 VDC
depending on the speed grade. See the UltraScale+ device data
sheets (see http://www.xilinx.com/documentation) for details.
The following gure shows the external power supply connecns with the GTM transceivers.
Figure 46: GTM Transceivers External Power Supply Connections
GTM Transceiver Dual
MGTVCCAUX
MGTAVCC
MGTAVTT
MGTAVTTRCAL
MGTRREF
1.2V
1.8V
100Ω
1%
0.9V
VCCINT_GT
0.85V or 0.9V
Depending on speed grade
X20929-053118
Note relevant to the gure:
1. The voltage values are nominal. See the UltraScale+ device data sheets (see hp://
www.xilinx.com/documentaon) for values and tolerances.
Chapter 5: Board Design Guidelines
UG581 (v1.0) January 4, 2019 www.xilinx.com
Virtex UltraScale+ GTM Transceivers 118
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Xilinx Virtex UltraScale+ FPGAs Specifications

General

Brand	Xilinx
Model	Virtex UltraScale+ FPGAs
Category	Transceiver
Language	English