30-Oct-2020, Rev. 1.1
19
2.6 Agile Mixed Signaling (AMS) Interface
The XADC header provides analog connectivity for analog reference designs, including
AMS daughter cards such as Xilinx’s AMS Evaluation Card. Both analog and digital IO can
be easily supported for a plug in card.
The pin out has been chosen to provide tightly coupled differential analog pairs on the
ribbon cable and to also provide AGND isolation between channels. The plug in cards
which will facilitate a number of reference designs have not yet been designed so this pin
out must provide a reasonable degree of freedom while also keeping resource
requirements as minimal as possible.
The Carrier AMS header is comparable with similar connectors on the Xilinx KC705 and
ZC702 boards. Any AMS plug-in cards built for those boards should be compatible with
this Carrier as well.
Figure 6 – Analog Header Pin out
The following anti-aliasing filters are used for the XADC inputs:
-
VP/VN
-
VAUX0P/VAUX0N
-
VAUX8P/VAUX8N
Figure 7 – Anti-Aliasing Filters for XADC Inputs
