12.97535

Overview

The Geyer Electronic America, Inc. model 12.97535 is a Voltage Controlled Temperature Compensated Crystal Oscillator (VCTCXO) designed for precision frequency generation in compact electronic systems. This component operates at a nominal frequency of 40 MHz and utilizes a clipped sine wave output signal format suitable for specific interface requirements. It functions within a single 3V supply voltage range, ensuring compatibility with low-power digital logic families. The device is housed in a small outline no-lead (SMD) package featuring four terminals, facilitating automated surface-mount assembly processes. This configuration supports space-constrained designs while maintaining the stability characteristics expected from temperature-compensated crystal oscillators.

Feature Summary

• Voltage controlled operation allows for precise frequency adjustment via an external control voltage input.
• Temperature compensation circuitry ensures stable frequency performance across varying thermal environments.
• Clipped sine wave output provides a defined signal shape optimized for compatible receiver inputs.
• Surface-mount no-lead packaging enables high-density board layout and efficient manufacturing integration.

Applications

• Wireless communication transceivers requiring stable local oscillator references
• Portable consumer electronics with limited power budgets
• Industrial instrumentation needing reliable timing signals
• Automotive infotainment and navigation system clock sources

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm pinout orientation and tolerance grades. Ensure the procurement channel provides traceable documentation confirming RoHS compliance status as indicated by the distributor listing. Cross-reference the package dimensions with your PCB footprint library to guarantee mechanical fit before placing orders.

Selection Notes

Select this component when a 40 MHz reference with voltage control capability is required in a minimal footprint. Consider the clipped sine wave output if the downstream circuitry accepts this waveform type without additional buffering. Evaluate the 3V supply constraint against your system's available rail voltages to determine if level shifting or regulation is necessary for proper operation.

Part Context

Geyer Electronic America, Inc. specializes in frequency control products including quartz crystals and oscillators. The 12.97535 belongs to their VCTCXO line, which combines temperature compensation with voltage tuning. This product family targets applications demanding high stability in compact form factors, serving as a key timing element in modern electronic devices where size and power efficiency are critical design parameters.

Replacement Considerations

Consult official cross-reference guides for direct substitutes. Verify that any alternative part matches the 40 MHz frequency, 3V supply, and 4-SMD package constraints. Ensure the replacement offers comparable phase noise and tuning sensitivity specifications to maintain system performance integrity.