QTT216-38.400MDG-T

Overview

The QTT216-38.400MDG-T is a temperature-compensated crystal oscillator (TCXO) manufactured by QST, designed for surface-mount applications with a compact 2.0x1.6 mm package. It operates at a nominal frequency of 38.4 MHz and utilizes a quartz resonator element housed in a ceramic structure. The device supports a supply voltage of 1.8V and delivers a clipped sine wave output format. It maintains a high frequency stability of ±0.5 ppm within an operating temperature range of -30°C to +85°C. The component is available in tape-and-reel packaging for automated assembly processes.

Feature Summary

• Temperature compensation ensures stable frequency performance across varying thermal conditions
• Compact surface-mount footprint suitable for space-constrained electronic designs
• Low phase noise characteristics inherent to quartz-based TCXO architecture

Applications

• Wireless communication modules requiring precise timing references
• Portable consumer electronics with limited power budgets
• Industrial control systems needing reliable clock signals
• Automotive infotainment and telematics units

Procurement Notes

Verify the specific suffix requirements against your design specifications before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the clipped sine wave output is compatible with downstream circuitry input thresholds. Check for any alternative pinout configurations if integrating into existing footprints. Validate the operating temperature range meets your environmental constraints.

Selection Notes

Choose this model when high frequency stability is critical in a small form factor. The 1.8V operation makes it suitable for battery-powered devices. Consider the clipped sine output compatibility with load circuits. Evaluate the ±0.5 ppm stability against system jitter requirements. Compare thermal performance needs against the -30°C to +85°C range.

Part Context

This component belongs to the QTT216 series of miniature TCXOs from QST. The series offers various frequency options within the same physical envelope. It represents a balance between precision timing and size efficiency. The product line targets modern portable and industrial applications demanding reliability.

Replacement Considerations

Direct substitutes include other QST models within the QTT216 series with matching frequencies or voltages. Cross-reference with TXC Corporation equivalents if pin-compatible alternatives are needed. Verify electrical parameters such as stability and output waveform when selecting replacements.