QTM216-26.000MDD-T

Overview

The QTM216-26.000MDD-T is a CMOS crystal oscillator from the QST QTM216 series, housed in a compact 4-SMD, No Lead package measuring 2.00mm x 1.60mm with a maximum height of 0.75mm. It operates at a nominal frequency of 26 MHz and supports supply voltages of 1.8V, 2.5V, and 3.3V. The device features a total frequency stability of ±25ppm across the industrial temperature range of -40°C to +85°C. Maximum supply current is 5mA, with low EMI output characteristics suitable for sensitive digital circuits.

Feature Summary

• Ultra-compact 2016 SMD ceramic seam-welded package designed for space-constrained SiP and wearable applications.
• Wide voltage compatibility supporting 1.8V, 2.5V, and 3.3V supplies without external regulation.
• Integrated enable/disable control via Pin 1 for active power management.
• Low electromagnetic interference (EMI) CMOS output with defined rise/fall times.

Applications

• Smartwatch and wearable device clock sources
• System-in-Package (SiP) modules
• Bluetooth Low Energy (BLE) communication interfaces

Procurement Notes

Verify the specific ordering suffix 'D' against the manufacturer's datasheet to confirm the exact voltage tolerance and stability grade. Ensure the pin configuration matches the 4-SMD no-lead footprint specifications. Confirm that the operating temperature range meets the environmental requirements of the target application before finalizing the procurement order.

Selection Notes

Select this component when a 26 MHz clock signal is required within a strict 2.0x1.6mm spatial constraint. It is appropriate for designs needing low power consumption under 5mA and robust stability of ±25ppm. Consider the integrated enable function if dynamic power saving is necessary for battery-operated portable electronics.

Part Context

This part belongs to the QTM216 family of surface-mount oscillators manufactured by QST. The series is characterized by its small form factor and low jitter performance. Variants within the family differ primarily in frequency, supply voltage options, and stability grades, all sharing the same physical dimensions and pinout architecture.

Replacement Considerations

Direct substitutes include other 2016 package CMOS oscillators with identical 26 MHz frequency and ±25ppm stability. Verify that replacement parts support the same 1.8V/2.5V/3.3V voltage ranges and maintain comparable EMI levels to ensure circuit compatibility.