SE873K5-D

Multiconstellation GNSS

The SE873K5‑D is a dual‑frequency multiconstellation GNSS receiver. It supports fast signal acquisition and provides high accuracy. The module offers flexible power management modes to reduce battery consumption. Its compact size and optimal performance make it ideal for portable devices.

  • Complete GNSS module with embedded flash memory and integrated TCXO and RTC
  • Supports major constellations: GPS, QZSS, GLONASS, Galileo, BeiDou, and NavIC
  • Flexible power management modes and an ultralow power variant for extended battery life
  • Preselection SAW filtering for coexistence with other radio technologies
  • Assisted GNSS (A‑GNSS) for faster TTFF
  • Adjustable eLNA works with active or passive antennas
  • Satellite-based augmentation system (SBAS) corrections increase positioning accuracy
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SE873K5‑D compact dual‑frequency GNSS receiver.
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Product Brief

Product Description

The SE873K5-D is the dual-frequency evolution of the SE873K5 GNSS receiver. It can track and navigate all four GNSS constellations (GPS + Galileo + GLONASS + BeiDou) simultaneously in the signal frequencies L1/E1/G1/B1 and L5/E5/B2, achieving a sensitivity of -165 dBm.

 

Its low-power processing core delivers several customizable power-saving modes to optimize current draw. In addition to the standard pin-out, a product variant with a second power supply allows further reduction of consumption for power-sensitive applications.

The SE873K5-D is the ideal solution for wearable devices and small, battery-powered portable solutions due to its:

  • Compact form factor (7 x 7 x 2.5 mm)
  • Latest generation chipset
  • Advanced power mode

 

Form Factor Family

The SE873K5-D comes in a subcompact 7 x 7 x 2.25 mm QFN-like package.

Overview

Features

  • Frequency Bands: GPS L1 + L5, GLONASS L1, Galileo E1 + E5, BeiDou B1+ B2, QZSS L1 + L5, NavIC L5
  • Standards: NMEA
  • SBAS (EGNOS, WAAS, GAGAN and MSAS) or QZSS L1S capability
  • RTC for efficient power management
  • Jammer rejection
  • Local and server-based A-GNSS
  • Low power modes
  • eLNA for optimal performances
  • DGNSS support for submeter accuracy

 

Certifications

  • RoHS compliant
  • RED

Environmental

  • Dimensions: 7 x 7 x 2.25 mm
  • 20-pad QFN package
  • Weight: 0.5 g

Temperature Range

  • Operating temperature: -40° C to +85° C
  • Storage temperature: -40° C to +85° C

Power Supply

  • Range from 1.75 up to 1.85 V
  • Optional second supply at 0.7 V (0.65 V to 0.83V)

Power Consumption: (@1.8V) @1Hz*

  • Acquisition: 83 mW
  • Tracking and navigation: 90 mW
  • Hibernate (RTC mode): 36 μW

Power Consumption: (@1.8V + 0.83V) @1Hz*

  • Acquisition: 64mW
  • Tracking and navigation: 64 mW
  • Hibernate (RTC mode): 36 μW

Power Consumption: (@1.8V + 0.7V) @1Hz-only*

  • Acquisition: 39mW
  • Tracking and navigation: 40 mW
  • Hibernate (RTC mode): 36 μW

Sensitivity

  • Acquisition (GGGB): -147 dBm
  • Tracking / Navigation (GGGB): -165 dBm

 

*Preliminary values on early samples

  • NMEA protocol
  • FW upgradable
  • PTWS unified commands
  • RTCM input
  • Local and server-based A-GNSS
  • Extended ephemeris (EE) storage

Product Comparison

Main Power Supply2nd SupplyPin-2-Pin with SE873K5
SE873K5-DP1.8 VN/AYes
SE873K5-DB1.8 V0.83 V / 0.7 V / 0.65 VNo (2nd Supply Pin)
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