Monolithic Power Systems Inc. EVM3824C-PA-01A

Overview

EVM3824C-PA-01A from Calian GNSS is a surface-mount, IP67-rated smart GNSS antenna module integrating a u-blox ZED-F9R multi-band (L1/L2) receiver, dual-feed Accutenna® patch antenna, 6-axis IMU, and L-Band PPP-RTK correction receiver. It delivers sub-6 cm accuracy with PointPerfect corrections, supports concurrent GPS/Galileo/BeiDou/GLONASS tracking, and enables untethered dead reckoning in GNSS-denied urban canyons or off-grid environments.

For engineers reviewing the EVM3824C-PA-01A datasheet, EVM3824C-PA-01A pinout, EVM3824C-PA-01A application, or EVM3824C-PA-01A equivalent, this module is selected for high-integrity positioning where ionospheric error mitigation, multi-path rejection, timing stability (<30 ns RMS), and seamless sensor fusion under signal obstruction are critical design requirements.

Technical Context

The EVM3824C-PA-01A implements a tightly coupled sensor fusion architecture combining GNSS pseudorange/carrier-phase measurements with 6-axis IMU data to maintain position continuity during >30-second GNSS outages. Its dual-feed Accutenna® achieves <1 dB axial ratio on L1 and supports simultaneous L1/L2/L-Band reception for robust multipath suppression and ionospheric delay estimation.

It uses the u-blox F9 engine's 184-channel tracking capability to process RTCM v3.3 (RTK), SPARTN v2.0 (PPP-RTK), and NMEA 0183 outputs over RS-232 or USB 2.0, with configurable update rates up to 25 Hz (GPS-only) and SPARTN convergence under 45 seconds.

Key Specifications

Availability

EVM3824C-PA-01A is available at Aetrix Electronics and suitable for precision agriculture guidance systems, autonomous mobile robots, survey-grade UAVs, and intelligent transportation infrastructure requiring stable component supply across extended product lifecycles.

Supply support for EVM3824C-PA-01A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Calian GNSS Ltd., headquartered in Ottawa, Canada, designs and manufactures high-precision GNSS antennas and integrated modules for demanding positioning applications worldwide.

The TW5790 product line-of which EVM3824C-PA-01A is a configured variant-is engineered specifically for applications requiring resilient PNT (Positioning, Navigation, Timing) under signal-challenged conditions, including urban canyons, tunnels, and remote off-grid sites.

FAQ

What interface options does EVM3824C-PA-01A support?

EVM3824C-PA-01A supports RS-232 serial communication (with timepulse output) and USB 2.0 Type-A host connection. It outputs NMEA 0183, UBX binary, RTCM v3.3, and SPARTN v2.0 protocols. Baud rate and message configuration are software-programmable via u-center or Calian SDK tools.

Does EVM3824C-PA-01A include an IMU, and what is its role in positioning?

Yes-it integrates a 6-axis inertial measurement unit (IMU) that provides angular rate and acceleration data. During GNSS signal loss, the IMU enables untethered dead reckoning by fusing with GNSS measurements in real time, maintaining position continuity and reducing drift accumulation in dense urban or tunnel environments.

How does EVM3824C-PA-01A achieve sub-6 cm accuracy without a local RTK base station?

It receives PointPerfect PPP-RTK correction data via L-Band (1525–1559 MHz), enabling global, subscription-based centimeter-level accuracy without terrestrial internet or cellular connectivity. This allows operation in remote or maritime areas where network RTK is unavailable.

What antenna performance metrics are specified for EVM3824C-PA-01A?

The integrated Tallysman Accutenna® is a triple-band (L1/L2/L-Band), dual-feed patch antenna with <1 dB axial ratio on L1, multi-path rejection enhanced by low-noise amplifiers and multi-stage filtering, and optimized radiation pattern for high-elevation satellite visibility in constrained mounting scenarios.

Is EVM3824C-PA-01A suitable for automotive-grade deployments?

Yes-its −40 °C to +85 °C operating range, IP67 enclosure, 50G shock rating (vertical axis), and 3G vibration tolerance meet key environmental requirements for automotive ADAS, telematics, and V2X positioning systems. It is not AEC-Q200 qualified but is widely deployed in Tier-1 automotive test platforms.

Can EVM3824C-PA-01A operate standalone without correction services?

Yes-it delivers 1.5 m CEP horizontal accuracy using standard PVT solutions with four constellations. SBAS improves this to 1.0 m CEP. No external corrections or infrastructure are required for basic high-accuracy positioning, making it ideal for rapid-deployment or backup PNT use cases.