Industry’s smallest standalone GNSS module
EVA-7M: industry’s smallest standalone GNSS module
The EVA-7M standalone GNSS module features the reliable performance of the u-blox 7 positioning engine. It is able to track GPS (QZSS), GLONASS and SBAS satellite signals. The EVA-7M delivers high sensitivity and achieves minimal acquisition time, all in the ultra compact 7.0 x 7.0 x 1.1 mm EVA form factor.

The EVA-7M is an ideal solution for cost and space-sensitive applications. It is easy to design-in, only requiring an external GNSS antenna in most applications. The layout of the EVA-7M has been  especially developed to ease design while limiting near field interferences since RF and digital domains are kept separated. EVA-7M uses a crystal oscillator to lower system costs. Like other u-blox GNSS modules, the EVA-7M uses components selected for functional reliability in the field as well as over the full operating temperature range.

Highlights

  • Industry’s smallest standalone GNSS module
  • Lowest system cost in the industry
  • Minimal power consumption
  • Simple integration with u-blox wireless modules
  • Eases design and manufacturing
  • No host integration or external components needed

Features

  • Receiver type
    • 56-channel u-blox 7 engine
    • GPS/QZSS L1 C/A, GLONASS L1 FDMA,
    • SBAS: WAAS, EGNOS, MSAS
  • Navigation update rate up to 10 Hz
  • Accuracy GPS / GLONASS
    • Position 2.5 m CEP / 4.0 m
    • SBAS 2.0 m CEP / n.a.
  • Acquisition GPS / GLONASS
    • Cold starts: 30 s / 32 s
    • Aided starts: 5 s / n.a.
    • Reaquisition: 1 s / 3 s
  • Sensitivity GPS / GLONASS
    • Tracking: –160 dBm / –158 dBm
    • Cold starts: –147 dBm / –139 dBm
    • Warm starts: –148 dBm / –145 dBm
  • Assistance
    • AssistNow Online
    • AssistNow Offline
    • AssistNow Autonomous
    • OMA SUPL & 3GPP compliant
  • Oscillator: crystal
  • RTC: Can be either derived from onboard GNSS crystal
    (for lowest system costs and smallest size) or from
    external RTC Clock (Default mode, for lower battery current)
  • Anti jamming: active CW detection and removal
  • Memory: onboard ROM
  • Supported antennas: active and passive
  • Antenna supervision:
    • short and open circuit detection
    • supported with external circuitry
  • Supply voltage: 1.65 V to 3.6 V
  • Digital I/O voltage level: 1.65 V to 3.6 V
  • Power Consumption
    • 16.5 mA @ 3 V (Continuous)
    • 4 mA @ 3 V Power Save mode (1 Hz)
  • Backup Supply 1.4 to 3.6 V
  • Interfaces: UART, USB, SPI and I2C
  • Only 7.0 x 7.0 x 1.1 mm


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