ZOE-M8G/M8Q - Ultra small multi-GNSS SiP modules

Ultra-compact GNSS SiP module for concurrent reception of up to 3 GNSS systems (GPS/Galileo and GLONASS or BeiDou)

ZOE-M8G and ZOE-M8Q are u-blox's latest, highly integrated System in Package (SiP) GNSS solutions based on the high performing u-blox M8 concurrent positioning engine. The new, record breaking ultra miniature form factor integrates a complete GNSS SiP, including SAW filter, LNA and TCXO.

The ZOE-M8 SiPs are targeted for applications that require a small size without compromising the performance. For RF optimization, the ZOE-M8 SiPs integrate a front-end SAW filter and an additional front-end LNA for increased jamming immunity and easier antenna integration. A passive antenna can be used to provide a highly integrated system solution with minimal eBOM.

Incorporating ZOE-M8 into customer designs is simple and straightforward thanks to the fully integrated design, single voltage supply (ZOE-M8G 1.8 V, ZOE-M8Q 3 V), low power consumption, simple interface, and sophisticated interference suppression that ensure maximum performance even in GNSShostile environments.

With its dual-frequency RF front-end, the ZOE-M8 SiPs are able to utilize concurrent reception of up to three GNSS systems (GPS/Galileo together with BeiDou or GLONASS). In addition, the ZOE-M8 SiPs provide an SQI interface for optional external Flash, allowing future firmware upgrades and improved A-GNSS performance.

Thanks to u-blox advanced algorithms and a complete GNSS solution, ZOE-M8 SiPs meet even the most stringent requirements in versatile industrial and consumer applications, such as UAVs, vehicles and assets tracking. The ZOE-M8 series also supports message integrity protection, anti-jamming, and antispoofing, providing reliable positioning in difficult environmental conditions as well as in security attack scenarios.

  • Ultra small size SiP 4.5 mm x 4.5 mm x 1.0 mm
  • Fully integrated and complete solution, reducing total design efforts
  • Ideal for passive antennas, due to built‑in SAW and LNA
  • High accuracy thanks to concurrent reception of up to 3 GNSS
  • -167 dBm sensitivity for reliable positioning in challenging conditions

For sales and technical development support from our in-house engineering team, please contact the Alpha Micro team.

Parameters Specifications
Receiver type

72-channel u-blox concurrent M8 engine

GPS/QZSS L1 C/A, GLONASS L10F , BeiDou B11, Galileo E1B/C


Nav. update rate¹

Single GNSS: up to 18Hz

2 concurrent GNSS: up to 10Hz


2.0 m CEP


Cold starts: 26s

Aided starts: 2s

Reacquisition: 1s


Tracking & Nav: -167dBm

Cold starts: -148dBm

Hot starts: -157dBm

Assistance GNSS

AssistNow GNSS Online

AssistNow GNSS Offline (up to 35 days)

AssistNow Autonomous(up to 6 days)

OMA SUPL & 3GPP compliant



RTC crystal

Optional, can be to external RTC Clock

DC/DC converter Optional only in ZOE-M8Q for low power, requires external components
Anti jamming Active CW detection and removal. Extra onboard SAW band pass filter
Memory ROM
SQI Flash (optional) for:

FW update

AssistNow Offline

AssistNow Autonomous

Data logging

Supported antennas Active and passive
Raw data Code phase output
Odometer Integrated in navigation filter

Up to 4 circular areas

GPIO for waking up external CPU

Spoofing detection


Signal integrity Signature feature with SHA 256
Data logger³ For position, velocity, time and odometer data
² For default mode: GPS/SBAS/QZSS + GLONASS
³ External Flash required
Serial interfaces


1 SPI (Optional)

1 DDC (I²C compliant)

1 SQI interface (for optional Flash)

Digital I/O

Configurable timepulse

1 EXTINT input

Time pulse Configurable: 0.25 Hz to 10 MHz
Protocols NMEA, UBX binary, RTCM
Electrical data
Supply voltage

1.71V to 1.89V (ZOE-M8G)

2.7V to 3.6V (ZOE-M8Q)

Power consumption²


40mA @ 1.8V (Continuous)


25mA @ 3.0V (Continuous)

Backup supply 1.4V to 3.6V
† With DC/DC
Environmental data, quality & reliability
Operating temperature -40°C to +85°C
RoHS compliant (lead free)
Qualification according to standard JESD47 / ISO 16750
Uses u-blox M8 chips qualified according to AEC-Q100
Moisture sensitivity level 3



51 pin S-LGA (Soldered Land Grid Array): 4.5 x 4.5 x 1.0mm, 0.04 g

Part Number Description Pack Size
ZOE-M8G u-blox M8 concurrent GNSS 51-pin S-LGA module, 1.8V, TCXO, ROM, SAW, LNA, 4.5 x 4.5 x 1mm
Reel of 1000
ZOE-M8Q u-blox M8 concurrent GNSS 51-pin S-LGA module, 3.0V, TCXO, ROM, SAW, LNA, 4.5 x 4.5 x 1mm Reel of 1000
Support Products
u-blox M8 GNSS evaluation kit for ZOE-M8G & ZOE-M8Q

The EVK‑M8GZOE evaluation kit makes evaluating the ultra small concurrent ZOE‑M8 GNSS modules simple. The built‑in USB interface provides both power supply and high speed data transfer, and eliminates the need for an external power supply. The u‑blox EVK-M8GZOE evaluation kit is compact, and its user‑friendly interfaces and power supply make it ideally suited for use in laboratories, vehicles and outdoor locations. Furthermore, it can be used with a PDA or notebook PC, and serves as reference design, making it the perfect companion through all stages of design‑in projects.


  • Easy to use
  • Extensive visualization and evaluation features
  • Supports AssistNow Online, AssistNow Offline and AssistNow Autonomous A‑GNSS services
  • All ports accessible outside
  • USB (V2.0 compatible) available for power supply and data transfer

Kit includes:

  • EVK‑M8GZOE unit
  • USB cable
  • Active GNSS antenna with 3 m cable

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Last updated: 14 November 2017