SkyTraq PX1100S - Page 5

5
SkyTraq Technology, Inc. Preliminary Draft www.skytraq.com.tw
10
GND
Ground
11
RF_IN
RF signal input, connect to L1 GNSS antenna.
3.2V active antenna bias on RF_IN.
12
GND
Ground
13
NC
No connection, empty pin
14
VCC_RF
Output voltage RF section
15
NC
No connection, empty pin
16
SDA
Not used. Leave unconnected
17
SCL
Not used. Leave unconnected
18
BOOT_SEL
No connection for normal use. Pull-low for loading firmware into empty or
corrupted Flash memory from ROM mode.