GF-8801

Overview

The GF-8801 is a multi-GNSS disciplined oscillator module manufactured by Volgen + Furuno. It integrates a GNSS receiver, OCXO, LDO regulator, and antenna detection circuitry into a single through-hole package. The unit operates at a frequency of 10 MHz with a supply voltage of 3.7V. It supports Galileo, GLONASS, GPS, and QZSS constellations. The operating temperature range spans from -40°C to 85°C. Physical dimensions are 34.00mm x 27.00mm with a maximum seated height of 1.40mm.

Feature Summary

• Integrates multi-GNSS receiver, OCXO, and LDO regulator within a single module
• Includes built-in antenna detection functionality
• Supports multiple satellite constellations including Galileo, GLONASS, GPS, and QZSS

Applications

• Navigation systems requiring high-frequency stability
• Telecommunications infrastructure timing
• Test and measurement equipment calibration

Procurement Notes

Verify the specific revision level against the manufacturer's latest documentation before integration. Confirm that the 3.7V supply requirement aligns with the target system design. Ensure the through-hole mounting footprint matches the PCB layout specifications. Check for any recent product change notices regarding component updates or manufacturing location changes.

Selection Notes

Select this module when a compact, integrated solution for GNSS-disciplined timing is required. It is suitable for applications needing support for multiple global navigation satellite systems without separate receiver components. Consider the through-hole package constraints and the specific 3.7V power supply availability in the design environment.

Part Context

The GF-8801 belongs to the GF-880x series of multi-GNSS disciplined oscillators. This series includes variants such as the GF-8802 and GF-8803. These modules are designed to provide stable frequency references by disciplining an internal oscillator using signals from various GNSS satellites. They serve as alternatives to discrete oscillator and receiver combinations.

Replacement Considerations

The GF-8701 is listed as a direct replacement option, although it is marked as obsolete. Verify compatibility with the GF-8801 if substituting this older model.