GF-8805

Overview

The GF-8805 is a GNSS disciplined oscillator module manufactured by Volgen + Furuno. It integrates an oven-controlled crystal oscillator (OCXO) with GPS/GNSS receiver capabilities to provide high-stability frequency references. The device operates at a nominal output frequency of 10 MHz and requires a supply voltage of 5.5 V. It supports multiple navigation protocols including GPS, GLONASS, Galileo, and other GNSS standards. The module features a surface-mount design with dimensions of 100 mm x 52 mm x 20 mm. It functions within a temperature range of -40°C to +85°C and exhibits a cold start acquisition time of 35 seconds.

Feature Summary

• Integrates OCXO technology with GNSS reception for precise timing discipline
• Supports multi-constellation navigation protocols including GPS and GLONASS
• Provides stable 10 MHz reference output via integrated oscillator circuitry

Applications

• Telecommunications base station synchronization
• Test and measurement equipment requiring stable frequency references
• Navigation systems needing high-precision timing sources

Procurement Notes

Verify the specific orderable part number against manufacturer documentation, as evaluation kits such as VF-85 may utilize this component. Confirm supply voltage requirements align with system design, noting the 5.5 V specification. Ensure environmental ratings meet operational temperature constraints. Check for updated hardware specifications or protocol support changes in official datasheets before finalizing procurement decisions.

Selection Notes

Select the GF-8805 when a combined GNSS receiver and high-stability OCXO solution is required in a single module form factor. Consider the physical dimensions and surface-mount installation style for PCB layout compatibility. Evaluate the 10 MHz output frequency against system clocking needs. Verify that the supported navigation constellations match regional availability and application requirements.

Part Context

The GF-8805 belongs to the GF-880X series of GNSS disciplined oscillators produced by Volgen + Furuno. This series includes variants such as the GF-8802 and GF-8804, which differ primarily in supply voltage and physical package characteristics. The GF-8805 specifically utilizes a 5.5 V supply and a larger module footprint compared to some compact alternatives in the lineup.

Replacement Considerations

The GF-8802 serves as a related variant within the same product family, offering similar functionality but operating at a different supply voltage.