This document is the technical specification of GARMIN GPS 25 LP series GPS sensor boards. The specification includes information about the release date, change history, additional features, and material information of the product.
The Garmin GPS 25LP Series sensor boards are compact GPS modules intended for OEM integration. They support up to twelve satellites, provide one‑second navigation updates, and include a rechargeable backup battery for memory retention. The boards are available in low‑voltage (GPS25‑LVC/LVS) and high‑voltage (GPS25‑HVS) versions with CMOS/TTL or RS‑232 serial interfaces.
The document details physical dimensions, environmental limits, electrical specifications, performance metrics, and both hardware and software interfaces, including NMEA 0183 sentences, PPS output, and optional binary phase data. Appendices provide connector details, evaluation kit information, and example data file formats.
| Physical size | 1.83" (W) x 2.75" (L) x 0.45" (H) |
|---|---|
| Weight | 1.3 ounce (38 g) |
| Operating temperature | -30 °C to +85 °C |
| Input voltage (LVx) | 3.6 VDC to 6.0 VDC regulated |
| Input voltage (HVx) | 6.0 VDC to 40 VDC unregulated |
| Typical input current (LVx) | 120 mA |
| Backup power | 3 V rechargeable Li‑ion cell, up to 6 months charge |
| Update rate | 1 second |
| Maximum satellites tracked | 12 (11 with PPS active) |
| Position accuracy (DGPS) | < 5 m RMS |
| Velocity accuracy | 0.2 m/s RMS |
| Dynamics capability | 999 knots velocity, 6 g |
| PPS accuracy | ±1 µs at rising edge |
The boards provide navigation updates once per second.
It can track up to twelve satellites, or up to eleven when the PPS output is active.
Yes, it includes a 3 V rechargeable lithium cell that can retain data for up to six months.