SiRFstar V 5e

Qualcomm SiRFstar is a product of Qualcomm Technologies International, Ltd.

Instant Fix Extended Ephemeris (EE)

Devices without wireless connectivity, such as cameras, are able to overcome slow TTFF, a common annoyance for the end user. 5e is capable of autonomously forward predicting EE for three days locally, and for connected devices the solution supports server based EE for up to 31 day for GPS and up to 14 day GLONASS EE.

Direct to battery capability

The GNSS chip can connect directly to a Lithium battery supply, allowing for system cost reduction and increased power efficiency. This is implemented by an integrated switched PMU, reducing system level power and eBOM costs.

Design flexibility for optimal solution cost

With clear attention to solution implementation, 5e is designed for small size and low power. For example, UART and SPI Flash drive levels are drivable from 1.8v to 3.3v, eliminating the need for level shifters and increasing implementation flexibility.

Intelligent design

The 5e is designed to be optimized for low power battery operated devices. For instance, in asset tracking applications, the 5e engine can intelligently decide how long to try to acquire satellite signal based around its environment, saving a significant amount of battery power.


  • Highly Accurate GNSS operation

  • Accuracy, Embedded Extended Ephemeris, for faster TTFF, direct to battery, low power.



Extended Ephemeris: GPS: 31 days, GLONASS: 14 days, Client-based GPS: 3 days

Satellite Systems Support: GPS, GLONASS, Beidou, Galileo, QZSS, SBAS


Flash: 16 MB



Supported Interfaces: I²C, SPI, UART


Analog I/O: 2

General Purpose I/Os: 12x


Package Type: BGA, WLCSP

Pitch: 0.4mm Pitch, 0.5mm Pitch

  1. Galileo ready
  2. External RAM on WLCSP, Stacked on BGA
  3. WLCSP
  4. BGA