Using External Power Sources
Each voltage rail for the RFSoC logic, multi-gigabit transceivers (MGTs), and RF data converters
has an associated Euro-Mag spring-clamp terminal block (callout 3, 14, 20, 26, 29, 30, 40, and 46,
Figure 2: Board Component Locations
), which can be used to provide power from an external
source (see the following table).
CAUTION! Do NOT apply power to any of the RFSoC logic external power supply connectors without first
disabling the associated regulator or regulators. Failing to disable the regulator can damage the board.
Each onboard RFSoC logic regulator can be disabled using its respective power regulation inhibit DIP switch
(callout 22,
Figure 2: Board Component Locations
). A regulator is enabled when the power regulation inhibitor
switch is set to the ENABLED position. The following table lists the external power connectors for the different
power rails.
Table 3: RFSoC Logic and Serial Transceiver Rails
Power Rail Net Name
External
Supply
Connector(s)
Remote Sense
Header
RFSoC Logic and Processor
VCCINT
J181
J22
VCCBRAM
J96
J74
VCCAUX
J23
VCCO_HP
J19
VCCO_HD
J18
VCCPINT
J177
VCCPAUX
J151
J146
VCC_PSPLL
J144
VCCO_DDR
J143
VCCO_MIO
J142
VCCINT_AMS
J64
GTY Transceivers
MGTAVCC
J150
J147
MGTAVTT
J148
MGTVCCAUX
J149
PS-GTR Transceivers
MGTAVCC_GTR
J67
J62
MGTAVTT_GTR
J63
RF Data Converters
ADC_AVCC
J114
J79
ADC_AVCCAUX
J115
J81
DAC_AVCC
J116
J75
DAC_AVTT
J107
J76
DAC_AVCCAUX
J113
J78
Notes:
1.
The serial transceiver or analog power module must be removed before providing external power to any of the
transceiver or data converter rails (see
Serial Transceiver Power Modules
).
Chapter 1: ZCU1285 Board Features and Operation
UG1348 (v1.0) July 16, 2019
ZCU1285 Board User Guide
15
