W-2220MR Crystal Temperature Test System

  • Industry’s first crystal temperature test system with 100% electronic switching
  • Proprietary 50 ohm reflection network provides typical frequency measurement repeatability 10 ppb !
  • Chamber holds eight 64-position pallet socket DUT PCBs for a total of 512 parts
  • RTD sensor mounted on DUT PCB for precision temperature measurement
  • Crystals of different frequencies can be tested in a single temperature run
  • Parameter and curve fit characteristics are checked against easy to define QC limits
  • Data can be exported to Microsoft Excel for custom data analysis
  • Thermistor-crystal testing for GPS application:
    • Residual frequency stability slope RFSS (ppb/°C)
    • 5°C small orbit hysteresis 1 RFHS (ppb/°C)
    • 5°C small orbit hysteresis 2 HSO (ppb pk-pk)
Computer, monitor, and measurement instrument on a wheeled cart; a speech bubble proclaims an extremely high-speed measurement capability.
Black 64‑position pallet with a grid of square holes shown on the left; adjacent is a green 64‑position pallet socket for a DUT PCB on the right.
Specifications
250B-2 Frequency Range: 1 MHz to 220 MHz
250C-2 Frequency Range: 1 MHz to 420 MHz
Frequency Correlation: ± 1 ppm* at series (typical)
Frequency Repeatability: 10 ppb (typical)
Temperature Stability: ± 0.1° C
Temperature Range: -55° C to 125° C (MR)
-65° C to 125° C (MR with LN2 Boost )

* Proprietary measurement and calibration algorithms provide correlation to industry standard crystal measurement equipment.

System Configuration
  • S&A 250B-2 or 250C-2 Network Analyzer with OCXO Option
  • S&A 4350MR Option 1 Temperature Test Chamber
  • Eight position card cage and backplane PCB
  • 50 Ohm Reflection Networks
  • Windows® based System Software
  • System Controller
  • Printer (Optional)
Sample Reports

The Roditi International Corporation Ltd is the exclusive European representative of Saunders & Associates, LLC

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