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GUI Installation
2.1
GUI Details
The TRF3722 GUI has two tabs, a Top Level tab and an Advanced Settings tab. The Top Level tab has
two ON/OFF buttons which turn the LO section and IQ modulator section ON or OFF individually. When
only the IQ modulator is turned ON, make sure a LO signal is provided at the EXT_VCO_IN SMA
connector.
The TRF3722 has seven registers (registers 0–6). Register 0 is a read-back register. The yellow circle in
Figure 4
illustrates the Device Communication Failure warning that appears when the GUI doesn't talk to
the device. Whenever this happens, make sure the FTDI FT245RL device drivers are installed on your
computer, reconnect the USB cable, and press the USB Reset button.
3
EVM Jumper Configuration
The default EVM jumper installation is listed in
Jumper
Description
JP2
Power save
JP4
Crystal supply
JP3
Ext/USB supply
JP8
5-V LDO (U6) load
JP6
5 V from LDO (U6)
JP8
3.3 V from LDO (U5)
4
TRF3722 EVM User's Guide
All manuals and user guides at all-guidesbox.com
Figure 4. GUI Warning
Figure
5.
Table 1. Default Jumper Connections
Default
Notes
Connection
Pins 2-3
Typical Operating Mode (1-2, power save mode)
Pins 1-2
On-board crystal (make sure R23 is populated and R25 is DNI)
Pins 1-2
External supply
Pins 1-2
External supply
Pins 1-2
LDO supply
Pins 1-2
LDO supply
Copyright © 2014, Texas Instruments Incorporated
www.ti.com
SLOU385 – May 2014
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