SparkFun Timing GNSS Breakout - mosaic-T

Product Overview

Unlock nanosecond-level timing precision with the SparkFun Timing GNSS Breakout, built around the Septentrio mosaic-T module. This board is engineered for demanding applications requiring high-accuracy time stamping, frequency synchronization, and GPS-disciplined oscillators (GPSDO).

At its heart, the mosaic-T is a multi-band, multi-constellation GNSS receiver that delivers impressive performance while maintaining ultra-low power consumption. The mosaic-T features Septentrio’s renowned AIM+ technology for advanced interference mitigation and anti-spoofing, ensuring the highest level of data integrity and reliability.

Uncompromising Performance and Reliability

• Extreme Timing Accuracy: Achieve timing precision down to $5\text{ns}$ out of the box, with the potential for sub-nanosecond ($<1\text{ns}$) accuracy using the optional Fugro AtomiChron® L-band service. Event accuracy is better than $20\text{ns}$.

• Disciplined Oscillator Ready: This breakout is designed for creating your own GPSDO. Easily access the RxClkBias data and utilize the external 10MHz reference clock input ($EXTREF$) to discipline a local oscillator for unparalleled stability. The input accepts a $50\Omega$, $10\text{ MHz}$ signal from $-14\text{ dBm}$ to $+14\text{ dBm}$.

• Robust Signal Integrity: Septentrio’s advanced AIM+ technology actively mitigates interference and thwarts spoofing attempts, guaranteeing the integrity of your timing data in challenging RF environments.

Powerful Features, Simplified Operation

• Intuitive Web Interface: The mosaic-T hosts its own web server, accessible via the USB-C connection. Configure the receiver, monitor performance, and analyze data through a standard web browser—no special software required.

• Code-Free Data Logging: We've eliminated the need for a separate microcontroller for data logging. A single onboard button controls everything: start/stop logging to a microSD card, and safely unmount the card. Once unmounted, the breakout appears as a USB mass storage device, allowing you to drag and drop your log files directly to your computer.

• Full CLI Control: For power users and automated testing environments, the mosaic-T offers a complete Command-Line Interface (CLI) over USB, providing granular control over every aspect of the receiver.

The SparkFun Timing GNSS Breakout strikes the perfect balance by providing access to a wide array of the mosaic-T's pins, similar to a full developer kit, but in a compact form factor. Whether you're integrating it into a custom enclosure or just need a reliable, 3.3V logic-level PPS output, this board is the ideal solution.

This description only scratches the surface. For detailed setup instructions, technical specifications, and example projects, be sure to check out our comprehensive Hookup Guide!