Hookup Guide
Schematic
Datasheet (ZED-F9T)Product Overview
The SparkFun GNSS Timing Breakout is a specialized tool designed for applications where time is just as critical as position. Featuring the u-blox ZED-F9T GNSS receiver, this board offers an impressive five nanoseconds of timing accuracy under clear skies without requiring any external GNSS correction data. Whether you are maximizing the efficiency of a 5G IoT network, synchronizing a distributed sensor grid, or building a high-precision NTP server, this breakout provides the ultra-accurate time reference you need.
Multi-Band Reliability
The ZED-F9T is a top-of-the-line multi-band module that supports L1, L2, and E5b bands across all major constellations (GPS, GLONASS, Galileo, and BeiDou). By tracking multiple bands concurrently, the ZED-F9T ensures extreme versatility and timing stability, even if it loses lock with one or more specific constellations.
Comprehensive Connectivity
We designed this breakout to be a complete GNSS development tool, even borrowing the form factor of our popular ZED-F9P Qwiic GPS-RTK-SMA Breakout to give you every connection you need:
- SMA Connectors: Includes three SMA connectors (one for the antenna and two dedicated for timing pulse signals), allowing for secure, low-loss connections to external equipment.
- USB-C & Qwiic: Features a modern USB-C connector for primary power and communication, plus two Qwiic connectors for easy, solder-free I2C integration with the rest of your system.
- Full Access: For advanced users, we have exposed a set of PTH pins, enabling direct access to most of the ZED-F9T's pinout.
Fast Acquisition
To ensure your system is up and running quickly, the breakout includes an onboard rechargeable backup battery. This powers the module's internal Real-Time Clock (RTC), reducing Time-To-First-Fix from a cold start (~24 seconds) to a hot start (~2 seconds).
