QTM216E-20.000MBM-T

Overview

The QTM216E-20.000MBM-T is a low EMI CMOS oscillator manufactured by QST, operating at a fixed frequency of 20 MHz with a supply voltage of 3.3 V. It features a compact 4-SMD, no lead package measuring 2.00 mm x 1.60 mm x 0.81 mm maximum height. The device provides a standard CMOS output and includes an enable/disable function controlled via Pin 1. Frequency stability is specified at ±50 ppm over the operating temperature range of -40°C to +125°C. The typical supply current is 10 mA. This component integrates spread-spectrum capabilities to reduce electromagnetic interference without requiring external filtering components.

Feature Summary

• Integrates low EMI spread-spectrum functionality within a compact surface-mount package to minimize radiated emissions.
• Features a dedicated control pin for enabling or disabling phase modulation modes to optimize signal integrity.
• Supports wide industrial operating temperatures up to 125°C for robust performance in demanding environments.

Applications

• High-definition video transmission systems
• Security camera clock links
• Consumer display interfaces

Procurement Notes

Verify that the specific part number suffix matches the required frequency tolerance and temperature grade. Confirm the enable/disable pin configuration aligns with the host controller's GPIO capabilities. Ensure the 3.3V supply rail meets the current requirements of the oscillator circuit during peak operation.

Selection Notes

Select this model when space constraints require a 2016 footprint while maintaining strict EMI compliance. The integrated spread-spectrum feature eliminates the need for additional passive filtering components, reducing bill of materials costs. Ensure the host system supports the necessary control logic for the enable pin if dynamic EMI adjustment is required.

Part Context

This component belongs to the QTM216E series of low EMI oscillators from QST. The series offers various frequency options within the 1 MHz to 40 MHz range, all sharing the same physical dimensions and electrical interface standards. The family is designed to replace traditional crystal oscillators in applications where electromagnetic compatibility is critical.

Replacement Considerations

Direct substitutes include other QTM216E variants with matching frequencies, such as QTM216E-24.000MBM-T or QTM216E-25.000MBM-T, provided the frequency difference is acceptable for the application timing requirements.