User's Manual

EVM User’s Guide
TI Confidential – Strictly Private 6
• Headers for current measurement and external JTAG connection.
• Bus powered device with no external power required for WIFI.
• Long range transmission with highly optimized antenna (200m Typical in open air with a
6dBi antenna AP)
• Can be powered with external 2xAA or 2xAAA alkaline batteries working down to 2.3V typ.
2.2.1 Power connections
The board can be powered by using the on-board micro USB connector. An on-board
LDO provides 3.3V for the CC3200 and the rest of the board to operate. This supply can
be isolated from the LDO using the jumpers on the board.
J12
Current
measurement
Measure the current flowing into the CC3200
device.
J13 Board power Short: Supply the board power from the on-board
LDO.
Open : Supply the board power from the J20
(battery connector)
J19 5V power 5V output from the USB VBUS (has a diode drop of
up to 0.4V)
J20 3.3V power
input
Can be used to power the board from an external
2XAA battery pack. It has in-built reverse voltage
protection to prevent the battery from being plugged
in the reverse manner.
Various powering options are discussed in subsequent sections.
2.2.2 2x20 pin connector assignment
The signal assignment on the 2x20 pin connector is shown below. The convention of J1..J4
is replaced with P1…P4 to avoid confusion with the actual board reference.