QTT216-25.000MDG-T

Overview

The QTT216-25.000MDG-T is a temperature-compensated crystal oscillator (TCXO) manufactured by QST, designed for surface-mount applications in a compact 4-SMD, No Lead package measuring 2.0x1.6 mm. It operates at a nominal frequency of 25 MHz with a clipped sine wave output format. The device supports a supply voltage of 1.8V and draws a maximum current of 2mA. It offers high frequency stability of ±500ppb across an operating temperature range of -30°C to 85°C.

Feature Summary

• Temperature compensation ensures stable frequency performance over varying thermal conditions.
• Compact 2.0x1.6 mm footprint suitable for space-constrained designs.
• Low power consumption with 2mA maximum supply current.
• High precision stability of ±500ppb for accurate timing requirements.

Applications

• Portable electronic devices requiring precise clock signals
• Communication modules needing stable frequency references
• Embedded systems with limited power budgets
• Consumer electronics utilizing surface-mount technology

Procurement Notes

Verify the specific suffix 'DG' against official QST documentation to confirm voltage and stability variants. Ensure compatibility with 1.8V logic levels and check for any lead-free or RoHS compliance certifications required by your manufacturing standards. Confirm package dimensions match your PCB footprint design.

Selection Notes

Select this component when high stability near ±1ppm is required alongside low power consumption. The 1.8V supply makes it suitable for battery-operated portable devices. Consider the clipped sine wave output interface for compatibility with downstream digital circuits. Evaluate the -30°C to 85°C temperature range against your environmental operating conditions.

Part Context

This part belongs to the QTT216 series of TCXOs from QST, characterized by small size and high stability. It complements other oscillators like the QTM216E series but offers superior temperature compensation compared to standard XO types. The 25 MHz frequency is common for clock generation in various digital interfaces.

Replacement Considerations

QTT216-25.000MBG-T may serve as a variant with different temperature ranges or stability specs. Verify pinout and electrical parameters before substitution. Cross-reference with TXC Corporation equivalents if available, ensuring identical frequency, voltage, and package dimensions.