2.8.2.3 3.3-V Rail Options
Table 2-12. 3.3-V Rail Options
Reference Designator
Description
Image
J13
Short (1-2) : 3.3 V from FTDI LDO
Short(2-3) : 3.3 V from 40-pin LP/BP connector
Open (1-2-3) : Default
Figure 2-25. J13 Header
Note
Remove the P3 jumper when using a 3.3-V rail from the 40-pin LP/BP or FTDI LDO, and mount the
R122 resistor if it is from the 40-pin LP/BP. The current rating is limited to 1A, either from the FTDI or
40-pin LP/BP.
2.8.2.4 Miscellaneous Headers
provides the list of miscellaneous headers and usage.
Table 2-13. Miscellaneous Headers
Reference
Designator
Usage
Comments
P1
VPP 1.7-V generation for fuse chain
1-2(default) : Closed
J27
Enables/disables the load switch (U31) of 5-V supply
generation either from > 5-V or 5-V circuitry.
(1-2) indicates >5 V
(2-3) indicates 5 V
1-2 : Open
2-3 (default) :Closed
J28
Enables/disables the load switch (U32) of 5-V supply
generation either from 5-V circuitry or 40-pin LP/BP
connector.
(1-2) indicates 20-pin LP/BP
(2-3) indicates 5 V
1-2 : Open
2-3 (default) :Closed
J16
LP/BP spare header
Onboard 10-pin header provides external user control for
configuring the LP/BP pins partially.
J18
DMM trace header 1
Onboard 16-pin header provides external user control for
JTAG trace signals.
J20
DMM trace header 2
Onboard 16-pin header provides external user control for
JTAG trace signals.
MMWAVEICBOOST
28
mmWaveICBoost and Antenna Module
SWRU546D – OCTOBER 2018 – REVISED NOVEMBER 2020
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