FTS125-CTV-010.0M

Overview

The FTS125-CTV-010.0M is a GPS-disciplined oscillator module manufactured by Connor Winfield, designed for fixed-position timing applications. It integrates a Wi125 GPS receiver with a mixed-signal phase lock loop to generate a 10 MHz CMOS output and a 1 PPS CMOS signal. The unit supports three selectable references: internal GPS, external 10 MHz LVCMOS, or external 1 PPS LVCMOS. Operating on a +3.3 V supply within the 0°C to 70°C commercial temperature range, it provides holdover capability and includes alarm outputs for loss-of-lock, holdover status, and antenna faults.

Feature Summary

• Phase-locked 10 MHz CMOS output and 1 PPS CMOS output derived from an integrated GPS receiver.
• Three selectable reference modes: GPS, external 10 MHz, or external 1 PPS via SYNC control inputs.
• Integrated alarms indicating Loss-of-Lock, Holdover, and Antenna Fault conditions.
• Compliance with ITU-T G.811 wander generation masks and support for NMEA serial data access.

Applications

• Telecommunications base station synchronization
• Network timing distribution systems
• Fixed-position frequency and time standards

Procurement Notes

Verify that the application environment allows for a full sky view, as the module requires an outdoor-mounted active GPS antenna connected via the MCX connector. Ensure the antenna supply voltage remains between 2.7 V and 13.2 V with current draw under 45 mA. Confirm that the 32-pin through-hole DIP package dimensions (105.41 mm x 83.82 mm x 18.22 mm) fit the mechanical constraints of the target assembly.

Selection Notes

Select this model for fixed-position applications requiring high stability with GPS discipline. The 'CTV' suffix indicates a TCXO reference and VCXO PLL option suitable for commercial temperatures (0°C to 70°C). For mobile applications, contact the manufacturer for specific offerings, as standard models are not designed for mobile use. Ensure the system can accommodate the required external antenna and power regulation.

Part Context

This component belongs to the 125 Series of GPS Disciplined Oscillators from Connor Winfield. It utilizes the Wi125 GPS receiver module internally. The CTV designation specifically denotes the combination of a Temperature Compensated Crystal Oscillator (TCXO) reference and a Voltage Controlled Crystal Oscillator (VCXO) in the phase lock loop architecture.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Contact Connor Winfield Sales for alternative model offerings or cross-reference information.

FAQ

What are the available reference sources for the FTS125-CTV?

The module supports three selectable references: the onboard GPS signal, an external 10 MHz LVCMOS reference, or an external 1 PPS LVCMOS reference. Mode selection is controlled via the SYNC1 and SYNC2 pins.

How does the module handle loss of GPS signal?

The module provides a Holdover Status alarm output when operating in holdover mode. It also features an Antenna Fault status output if a fault is detected on the antenna supply voltage pin.

Is this module suitable for mobile applications?

No. Standard 125 Series models, including the FTS125-CTV, are designed for fixed position operation only. Mobile application models must be obtained by contacting Connor Winfield Sales.