WI125

Application Specific Clock/Timing Overview

The Connor Winfield Wi125 is a surface-mount GPS module designed for synchronization and timing in WiMax applications. It features a 12-channel hardware correlator processor and an onboard programmable NCO oscillator outputting synthesized frequencies up to 30 MHz, steered by the GPS receiver. The module provides phase-aligned 1PPS and 10 MHz outputs with stable holdover capabilities, maintaining alignment during loss of lock. Key specifications include -186 dBW tracking sensitivity, <5m RMS outdoor position accuracy, and operation within a -30°C to +85°C temperature range. It utilizes three UART ports and GPIO interfaces for control.

Application Specific Clock/Timing Feature Summary

• 1PPS and 10 MHz phase-aligned outputs with stable holdover
• Onboard programmable NCO oscillator (up to 30 MHz)
• 12-channel parallel correlator processor design
• RoHS compliant OEM surface mount package

Application Specific Clock/Timing Applications

• WiMax base station synchronization
• Timing and synchronization systems
• GPS/UTC time/scale synchronization

Application Specific Clock/Timing Procurement Notes

Verify RoHS compliance status as per revision history. Confirm software build requirements for specific features like frequency output on pin 32. Check lead times due to high order volume processing delays mentioned in distributor notes. Ensure compatibility with host system voltage levels (3.3V digital, 1.8V core).

Application Specific Clock/Timing Selection Notes

Select based on required timing accuracy (25ns RMS) and holdover stability. Consider power supply filtering requirements (50mV peak-to-peak noise limit). Evaluate antenna connection options (castellation vs. RF connector). Verify if custom software builds are needed for extended GPIO or external clock functionality.

Application Specific Clock/Timing Part Context

Part of the 125 Series from Connor Winfield. Designed specifically for OEM integration into communication infrastructure. Utilizes ARM966E-S processor on 0.18µ process. Compatible with standard GPS antenna interfaces.

Application Specific Clock/Timing Replacement Considerations

No direct public substitutes identified. Custom software builds may alter feature availability. Compare timing performance and holdover characteristics with alternative GNSS modules for WiMax applications.