25QHM53D4.0-42.53976

Oscillators Overview

The 25QHM53D4.0-42.53976 is a QuikXO spread spectrum crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 42.53976 MHz with a CMOS output signal. The device supports a supply voltage range of 2.5V to 3.3V and features an enable/disable control function. It utilizes a down-spread modulation profile with a -4% deviation. The component is housed in a 4-pad ceramic surface-mount package measuring 5.0 x 3.2 x 1.2 mm, designed for low electromagnetic interference applications.

Oscillators Feature Summary

• QuikXO EMI reduction technology utilizing spread spectrum modulation
• CMOS output interface with integrated enable/disable functionality
• Down-spread frequency modulation profile for noise reduction
• Lead-free and RoHS compliant construction

Oscillators Applications

• High-speed digital circuits requiring low EMI clock sources
• Embedded systems with strict electromagnetic compatibility requirements
• Communication equipment utilizing CMOS-compatible clock signals

Oscillators Procurement Notes

Verify the specific frequency suffix (42.53976) against design requirements, as this series offers multiple frequency options. Confirm that the CMOS output level matches the receiving logic family voltage thresholds. Ensure the PCB footprint accommodates the 5.0x3.2mm SMD package dimensions and 4-pad ceramic substrate layout. Check for any specific enable pin routing requirements in the schematic.

Oscillators Selection Notes

Select this component when low electromagnetic interference is critical for system performance. The spread spectrum feature helps reduce peak emissions compared to fixed-frequency oscillators. The CMOS output simplifies integration with standard digital logic without additional buffering. The wide supply voltage range allows flexibility in power domain selection within the target application.

Oscillators Part Context

This part belongs to the 25QHM53 series of QuikXO oscillators from Mercury Electronics. The series provides various frequencies tailored for different timing needs while maintaining consistent physical dimensions and electrical characteristics. The 'D4.0' designation typically indicates the specific package type and pin configuration common to this product line.

Oscillators Replacement Considerations

Direct replacements must match the 42.53976 MHz frequency, CMOS output, and 5.0x3.2mm package. Other parts in the 25QHM53 series with different frequency suffixes are pin-compatible but electrically distinct. Verify that substitute components support the same 2.5V-3.3V operating range and enable/disable functionality.