Specifications

Cinterion
®
ALAS66A Hardware Interface Overview
2.3 GNSS Antenna Interface
33
 ALAS66A_HIO_v01.000a 2019-02-26
Confidential / Released
Page 30 of 51
Figure 12 shows a sample circuit realizing ESD protection for a passive GNSS antenna. Con-
necting the input ANT_GNSS_DC to GND prevents ESD from coupling into the module.
Figure 12: ESD protection for passive GNSS antenna
GNSS_EN
ANT_GNSS
Passive
GNSS
antenna
10nH
100nF
To GNSS
receiver
Module
SMT interface
ANT_GNSS_DC
(Optional)
ESD
protection
0R
Not used