EVA-M8 Series - Ultra compact standalone concurrent multi-GNSS modules

The EVA-M8 series is an ideal solution for cost and space sensitive industrial and wearable applications. It is easy to design-in, only requiring an external GNSS antenna in most applications.

The EVA-M8M and EVA-M8Q GNSS modules feature the superior performance of the u-blox M8 concurrent positioning engine, supporting GPS, Galileo, GLONASS and BeiDou. The EVA-M8 series delivers high sensitivity in the ultra compact EVA form factor of 7.0 x 7.0 x 1.1 mm.

The EVA-M8 series is an ideal solution for cost and space sensitive industrial and wearable applications. It is easy to design-in, only requiring an external GNSS antenna in most applications. The layout of the EVA-M8 modules is especially designed to simplify the customer's design and limit near-field interferences, as RF and digital domains are kept separate. The EVA-M8Q is ideal for designs with small antennas or covert installations, whereas EVA-M8M is the preference when system costs matter most.

With a dual-frequency RF front-end, the EVA-M8 concurrent GNSS modules are able to intelligently use the highest number of visible satellites from three GNSS systems (GPS and Galileo together with GLONASS or BeiDou) for reliable positioning.

The EVA-M8 series modules provide a Serial Quad Interface (SQI) for optional external FLASH, which can be used for future firmware upgrades and improved Assistance GNSS performance. The EVA-M8 series also supports message integrity protection, geofencing and spoofing detection. The migration from previous generations is easy, as the EVA-M8 series is pin-compatible to EVA-8M and EVA-7M modules.

The EVA-M8 series combines a high level of integration capability with flexible connectivity options in a miniature package. It can be easily integrated in manufacturing, thanks to the QFN-like package. The modules are available in 500 pcs/ reel, which is ideal for small production batches. The DDC (I 2 C compliant) interface provides connectivity and enables synergies with most u-blox cellular modules.

The EVA-M8M and EVA-M8Q modules are fully tested and qualified according to the JESD47 standard.

  • Complete GNSS solution in 7x7 mm package
  • Cost‑efficient modules for different performance needs
  • Very high accuracy thanks to 3 concurrent GNSS
  • Highly integrated modules allow faster time‑to‑market
  • Versatile products fit into wide‑range of applications

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 rate

Single GNSS: up to 18 Hz

2 concurrent GNSS: up to 10 Hz


Position: 2.5 m CEP

SBAS: 2.0 m CEP

Parameter EVA-M8M EVA-M8Q
Cold starts 26s 26s
Aided starts 3s 1s
Reacquisition 1s 1s
Parameter EVA-M8M EVA-M8Q
Tracking & Nav. -164dBm -167dBm
Cold starts -148dBm -148dBm
Hot starts -157dBm -157dBm

AssistNow Online

AssistNow Offline (up to 35 days)

AssistNow Autonomous(up to 6 days)

OMA SUPL & 3GPP compliant


Crystal (EVA-M8M)


Real Time Clock

Can be derived either from onboard GNSS crystal (EVA-M8M only, for lowest system costs and smallest size) or from external RTC Clock (EVA-M8M/Q, Default mode, for lower battery current)

Anti jamming Active CW detection and removal
Memory ROM
SQI Flash (optional) for:

FW update

AssistNow Offline

AssistNow Autonomous

Data logging

Supported antennas Active and passive²
Antenna supervision Short and open circuit detection supported with external circuit
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 EVA-M8M: external LNA and SAW recommended for passive antenna applications
³ External Flash required
Serial interfaces



1 SPI (Optional)

1 DDC (I²C compliant)

1 SQI interface (for Flash update)

Digital I/O

Configurable timepulse

1 EXTINT input for Wakeup

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

1.65 V to 3.6 V (EVA-M8M)

2.7 V to 3.6 V (EVA-M8Q)

Digital I/O voltage level

1.65 V to 3.6 V (EVA-M8M)

2.7 V to 3.6 V (EVA-M8Q)

Power consumption¹

22 mA @ 3 V (Continuous)

5.3 mA @ 3V (Power Save mode, 1 Hz)

Backup supply 1.4 to 3.6 V
¹ EVA-M8M-0 default mode: GPS/SBAS/QZSS+GLONASS
Environmental data, quality & reliability
Operating temperature -40°C to +85°C
Storage temperature

-40°C to +85°C (EVA-M8Q)

-40°C to 105°C (EVA-M8M)

RoHS compliant (lead free) and green (no halogens)
Qualification according to standard JESD47
Moisture sensitivity level 3



43 pin LGA (Land Grid Array): 7.0 x 7.0 x 1.1 mm, 0.13 g

Part Number Description Pack Size
EVA-M8M-0 u-blox M8 concurrent GNSS 43-pin LGA module, crystal, ROM, green (Professional grade), 7.0 x 7.0 mm (Default: GPS + GLONASS)
Reel of 500
EVA-M8M-1 u-blox M8 concurrent GNSS 43-pin LGA module, crystal, ROM, green Professional grade), 7.0 x 7.0 mm (Default: GPS + BeiDou) Reel of 500
EVA-M8Q-0 u-blox M8 concurrent GNSS 43-pin LGA module, TCXO, ROM, green (Professional grade), 7.0 x 7.0 mm (Default: GPS + GLONASS) Reel of 500
Support Products
u-blox M8 GNSS evaluation kit for EVA-M8M (crystal)
EVK-M8QEVA u-blox M8 GNSS evaluation kit for EVA-M8M (crystal) Each
NEO adaptor board using EVA-M8M foreasy evaluation of existing NEO-xM designs
Sample quantities or reels of 250

EVK-8/EVK-M8 evaluation kits enable simple evaluation of the high performance u-blox M8 positioning technology. The built-in USB interface provides both power supply and high-speed data transfer, and eliminates the need for an external power supply.AlphaMicro_u-blox_EVK-M8N

u-blox 8/M8 evaluation kits are compact, and their user-friendly interface and power supply make them ideally suited for use in laboratories, vehicles and outdoor locations. Furthermore, they can be used with a PDA or a notebook PC, making them the perfect companion through all stages of design-in projects.


  • Easy to use
  • Extensive visualization and evaluation features
  • Supports AssistNow Online and AssistNow Offline A-GNSS services
  • 1 USB port, 1 UART port, 1 I2C/SPI port (switchable)
  • All ports accessible outside
  • Power supply and data transfer over USB (USB V2.0 compatible)

Kit includes:

  • Compact 105 x 64 x 26 mm EVK‑M8 or EVK‑8 unit
  • USB cable
  • EVK‑M8: Active GPS / GLONASS / BeiDou antenna
  • EVK‑8: Active GPS / GLONASS antenna
  • Quick Start reference card

u-center GPS/GNSS evaluation software

The EVK-M8 download includes u-center, which is an interactive tool for configuration, testing, visualization and data analysis of positioning chips and modules. u-center provides useful assistance during all phases of a system integration project.

Related Products

Recently Viewed Products

Last updated: 23 August 2016