LFTVXO009919BULK

Overview

The LFTVXO009919BULK is a Voltage Controlled Temperature Compensated Crystal Oscillator (VCTCXO) manufactured by IQD Frequency Products. It operates at a nominal frequency of 32.768 MHz with an HCMOS output format. The device is designed for through-hole mounting and functions within a temperature range of -40°C to +85°C. It requires a supply voltage between 2.7 V and 3.6 V, drawing a maximum current of 25 mA. Key electrical specifications include a frequency stability of ±10 ppm over the operating temperature range and a pullability range of ±50 ppm.

Feature Summary

• Integrates temperature compensation and voltage control for enhanced frequency accuracy across varying thermal conditions.
• Provides a stable square wave signal via HCMOS output interface suitable for digital logic circuits.
• Supports wide frequency pullability to accommodate system tuning requirements.

Applications

• Precision timing references in telecommunications equipment
• Clock sources for embedded systems requiring high stability
• Industrial instrumentation and measurement devices

Procurement Notes

Verify that the specific suffix 'Bulk' corresponds to loose-leaf packaging rather than tape-and-reel configuration when reviewing distributor listings. Confirm the lead time availability as VCTCXOs may have longer production cycles compared to standard oscillators. Ensure the ordering part number matches the exact frequency and package style required for your PCB layout.

Selection Notes

Select this component when a balance of high stability and tunability is required in a through-hole package. Compare against TCXOs if voltage control is unnecessary, or against OCXOs if superior long-term aging performance is critical. Evaluate the pull sensitivity curve to ensure it meets the system's frequency adjustment needs without exceeding the drive level limits.

Part Context

This part belongs to IQD's VCTCXO portfolio, which combines the stability of temperature-compensated crystals with the adjustability of voltage control. These components are typically used where precise frequency alignment is needed after assembly or during operation, distinguishing them from fixed-frequency XO or TCXO models.

Replacement Considerations

Direct replacements must match the 32.768 MHz frequency, HCMOS output, and through-hole HC49 package. Verify compatibility of the pull range and supply voltage with existing circuit designs before substitution.