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CSR-StarV™ low power ROM chip
Dimension : 24x20x2.9mm


  • GPS, GLONASS, Galileo, BDS and SBAS reception for high GNSS availability and accuracy
  • High sensitivity navigation engine (PVT) tracks as low as
    • GPS : -165 dBm
    • GLONASS : -161 dBm
  • 52 track verification channels
  • Active Jammer Remover, removes in-band jammers up to 80 dB-Hz
  • Tracks up to 8 CW jammers
  • Multimode A-GPS (Autonomous, MS-Based, and MS-Assisted), need operator support.
  • Embedded CGEE / SGEE (With back-end server support) speed up TTFF a lot and makes cold start time to be around 20+ seconds.
  • SiRFGeoRecovTM Reverse EE makes positioning process being done under power saving mode.
  • Reacquisition Time : 0.1 second
  • RF Metal Shield for best performance in noisy environments


Hardware and Software

  • Based on the high performance features of the SiRFstarV™ low power single core logic.
  • Adaptive micropower controller
  • Only 50 to 500μA maintains hot start capability (core logic)
  • < 10mW required for TricklePower™ mode
  • RoHS compliant (lead-free)
  • SMT pads allow fully automatic assembly processes equipment and reflow soldering
  • Advanced navigation features
  • Smart sensor supported by I²C interface
  • External interrupt input for context change detection



  • Built-in LNA.
  • Built-in internal ROM and based on Firmware 5.5.X
  • It can remove in-band jammer up to 80db-Hz and track up to 8CW jammers, so the module can prevent GPS signal interference when design-in the electrical device with noisy electrical signal interferences such as Laptop, mobile phone, DSC, etc.
  • Maintain tracking sensitivity as low as GPS @ -165dBm, GLONASS @ -161dBm, even without network assistance. (SiRFstar III has only -159dBm sensitivity)
  • Support SiRFaware™ technology
  • Support adaptive“Micro Power Controller”power management mode.
  • < 10mW TricklePower™, so user can leave power on all day instead of power off.
  • Suitable for battery drive devices that need lower power consumption application
  • Cost saving through elimination of RF and board to board digital connectors
  • Flexible and cost effective hardware design for different application
  • Embed CGEE (Client Generated Extended Ephemeris) that can capture ephemeris data from satellites locally and predicts ephemeris up to 3 days. So if the module was off within 3 days, it could complete positioning process with limited time just like hot start.


Technical specification
Feature Content Description
Chipset GSD5e/ROM Base SiRFstarV™ low power single chipset
General Frequency GPS L1, 1575.42 MHz
Frequency GLONASS L1,1602~1615MHz
C/A code 1.023 MHz chip rate
Channels 52
Sensitivity GPS -165dB
Sensitivity GLONASS -161dB
Accuracy Position < 2.5 meters
Velocity 0.01 meters/second
Time 1 uS synchronized to GPS time
Datum Default WGS-84
Other selectable for other Datum
(@ -130dBm)
Reacquisition 0.1 sec., average
Snap start 1 sec., average
Hot start 1 ~ 2 sec.
Warm start 9 ~ 15 sec
Cold start 25 ~ 35 sec
Dynamic Conditions Altitude 18,000 meters (60,000 feet) max.
Velocity 515 meters/second (1000 knots) max.
Acceleration 4g, max.
Jerk 20 meters/second3, max.
Power Main power input 1.8 ~ 3.6 VDC input
Power Consumption Average: 60mA (Tracking Mode)
Backup Power (VSTBY) 1.8 ~ 3.6V DC battery input
Serial Port Electrical interface
Protocol messages
Default UART
Physical Specification
Items Description
Length 24 mm ± 0.3mm
Width 20 mm ± 0.3mm
Height 2.9 mm ± 0.3mm
Weight 1.8 g
Environmental Specification
Items Description
Operating temperature range -40 deg. C to +85 deg. C
Storage temperature range -50 deg. C to +95 deg. C
Humidity Up to 95% non-condensing or a wet
Bulb temperature of +35 deg. C


  • Revised web page of product spec and information won't be noticed, product colorbox printing shows the actual information of the product.
  • Above product spec is for reference only, actual spec rely on the real product and Leadtek keeps the right to alter. Each sales region will impacts the product difference, please contact your supplier for making sure the actual product information.
  • The adapter, cable and software listed on the web page are for reference only and Leadtek keeps the right to alter, revised information won't be noticed.
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