Telit Wireless Solutions SL876Q5-A, Product User Manual

Page: 33 / 68

SL876Q5-A Product User Guide
1VV0301333 Rev. 2
Page 33 of 68
2017-06-27
Pin Name Type Function
Power
18 1V8 Pwr Connect to 1.8 V supply. See Section 8.4 Power Supply.
Ground
2, 3, 5,
10,
12,
13,
20, 24 GND
Gnd Connect all pins to ground.
RF Input
11
Ext Ant
RF_In I
External Antenna RF Input. Max 16V DC may be applied.
See Section 8.7 RF Interface.
Control Input
7 ON-OFF I
On/Off. See Section 8.5.1 ON-OFF (input) and SYSTEM-ON
(output) .
1 nRESET I
Reset (active low). Do not drive high. See Section 8.5.2 nReset.
This signal is not necessary for normal operation and should be
brought out to a test point or may be left unconnected.
4
BOOT-
Select
I
Low during normal operation. BOOT-SEL may be pulled high to
force the module into the programmable state. BOOT-SEL is read
prior to the host select lines (GPIO 6 & 7). This pin should be
brought out to a test point or left floating.
See Section 7 Flash Upgradability.
16 GPIO6
I
GPIOs 6 & 7 are read during power-up and reset to configure the
primary host port.
After configuration, they may be used for UART or SPI signal lines
depending on the firmware options enabled.
See
Section 8.8 Host I/O Ports - Configuration and Operation .
6 GPIO7
14
Int / nExt
Ant
Enable
I
Enable the internal Chip Antenna
(and disable the external (active) antenna). Internal pullup.
See
Section 8.5.4 Internal / nExternal Antenna Enable
Output
22
System
On O
Indicates the power state of the module. Also called Wakeup .
See Section 8.5.1 ON-OFF (input) and SYSTEM-ON (output) .
9
LNA
Enable O
LNA control (used for both internal and external antennas).
High when the receiver is operating, low when in a low-power state.
Also called
GNSS_ON . See Section 4.16 Internal LNA.
8 PPS O 1PPS time mark. See Section 8.6.1 1PPS.