Xilinx 7 Series User Manual page 218

Chapter 5: Board Design Guidelines
Table 5-1: GTP Quad Pin Descriptions (Cont'd)
Pins
MGTAVCC
MGTAVTT
X-Ref Target - Figure 5-1
Notes relative to
1.
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In (Pad) MGTAVCC is the analog supply for the internal analog circuits of the GTP
Quad tile. This includes the analog circuits for the PLLs, transmitters and
receivers. Most packages have multiple groups of power supply connections
in the package for MGTAVCC. Refer to the package pin definitions to identify
in which power supply group a specific GTP Quad is assigned. Nominal
voltage = 1.0 VDC.
In (Pad) MGTAVTT is the analog supply for the transmitter and receiver termination
circuits of the GTP Quad tile. Most packages have multiple groups of power
supply connections in the package for MGTAVTT. Refer to the package pin
definitions to identify which power supply group a specific GTP Quad is
assigned. Nominal voltage = 1.2 VDC.
Figure 5-1: Artix-7 FPGA GTP Power Supply Connections
Figure 5-1:
Nominal values. Refer to DS181, Artix-7 FPGAs Data Sheet: DC and Switching
Characteristics for values and tolerances.
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Description
GTP Quad
MGTAVCC
MGTAVTT
100 ohm
1%
MGTRREF
UG482_c5_01_080612
7 Series FPGAs GTP Transceivers User Guide
(1)
1.0V
(1)
1.2V
UG482 (v1.9) December 19, 2016