User's Guide

LE920A4 HW User Guide Module Connections
Doc#: 1VV0301261 Signals That Must Be Connected
Rev. 4.7.1 Page 38 of 124 2019-11-21
PAD Signal Notes
AH19 C103/TXD If not used, connect to a
test point
AF19 C104/RXD If not used, connect to a
test point
AA18 C105/RTS If flow control is not used,
connect to GND
AK19 C106/CTS If not used, connect to a
test point
AB19 TX_AUX If not used, connect to a
test point
AD19 RX_AUX If not used, connect to a
test point
AD1 Antenna MAIN antenna
AU9 ANT_DIV
S1 ANT_GPS
J2, L2, F3, H3, K3, E4, AN14 Reserved Connect to a test point for
Titan internal use
AN4 GPIO_20 If not used, connect to a
test point
AT2 WCI_RX If not used, connect to a
test point
AS1 ON/OFF Main power on off signal
AN12 SHDN_N Emergency power off
D19 USB_D+ If not used, connect to a
test point or an USB
connector
F19 USB_D- If not used, connect to a
test point or an USB
connector
A18 USB_VBUS If not used, connect to a
test point or an USB
connector
AK19 C106/CTS If not used, connect to a
test point