NRF9160-SICA-R7 datasheet(367/400 Pages) NORDIC

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8 GPS receiver

The GPS receiver supports GPS L1 C/A reception. Operation is time multiplexed with LTE modem, and it is

possible to obtain the GPS position either while the LTE is in RRC Idle mode or power saving mode (PSM),

or when the LTE modem is completely deactivated.

The application processor is the master in the system and responsible for starting and stopping of the GPS

receiver. GPS receiver is accessible to user through the GPS API.

Note: For details regarding the modem API, please refer to nRF Connect SDK document and nRF91

AT Commands, Command Reference Guide document.

Key features of the GPS receiver are:

• GPS L1 C/A supported

• Optimized for low-power and low-cost IoT applications

• Modes of operation:

• Single shot (cold start mode by default)

• Position fix per fixed interval, configurable between 10 s - 0.5 hour: first start with cold start,

sequential fixes with hot start

• Continuous tracking

• Power saving mode:

• Duty-cycled continuous tracking operation

• Antenna interface:

• External low-noise amplifier (LNA) with SAW filter recommended on the GPS antenna input

• Dedicated GPS antenna, or shared antenna with LTE

• GPS antenna pin is DC grounded

Note: There must be minumum 27dB attenuation to out of band power to avoid blocking high

power RF signals to GPS receiver input. This can be achieved for example by a SAW filter at the

output of the external LNA.

8.1 Electrical specification

Table below summarises GPS receiver performance parameters.

4418_1315 v2.0

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