ML623 Board User Guide
www.xilinx.com
13
UG724 (v1.1) September 15, 2010
Detailed Description
Monitoring Voltage and Current
Voltage and current monitoring and control are available for selected power rails through
Texas Instruments' Fusion Digital Power graphical user interface (GUI). Both onboard TI
power controllers are wired to the same PMBus. The PMBus connector, J6, is provided for
use with the TI USB Interface Adapter PMBus pod and associated TI GUI.
References
More information about the power system components used by the ML623 board are
available from the Texas Instruments digital power website at:
http://www.ti.com/ww/en/analog/digital-power/index.html
GTX Transceiver Power Module
The GTX transceiver power module supplies MGTAVCC and MGTAVTT voltages to the
FPGA GTX transceivers. Three power modules are provided with the ML623 board. Any
one of the three modules can be plugged into connectors J34 and J179 in the outlined and
labeled power module location shown in
Figure 1-4
.
Table 1-2
describes the nominal voltage values for the MGTAVCC and MGTAVTT power
rails. It also lists the maximum current ratings for each rail supplied by either module
included with the ML623 board.
The GTX transceiver power rails also have corresponding input voltage jacks to supply
each voltage independently from a bench-top power supply (See External Supply Jack
column in
Table 1-2
). To supply power externally to one or both rails when the Linear
X-Ref Target - Figure 1-4
Figure 1-4:
Mounting Location, GTX Transceiver Power Module
UG724_c1_04_031910
Table 1-2:
GTX Transceiver Power Module
Power Supply
Rail Net Name
Typical
Voltage
Maximum Current Rating
Regulation Jumper
External
Supply
Jack
Linear
Technology
Module
Texas
Instruments
Module
Intersil
Module
Linear
Technology
Module
Texas
Instruments
Module
Intersil
Module
MGTAVCC
1.025V
20A
10A
10A
JP1
N/A
N/A
J178
MGTAVTT
1.2V
12A
6A
6A
JP2
N/A
N/A
J189