18QHTF21-31.996875-PD

Oscillators Overview

The 18QHTF21-31.996875-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 31.996875 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and features a standby or power-down mode capability for energy management. It is housed in a compact 4-SMD, no lead package suitable for surface-mount assembly.

Oscillators Feature Summary

• Supports low-voltage operation with 1.8V supply requirement
• Includes standby functionality for power reduction
• Utilizes LVCMOS output interface for digital compatibility
• Designed in a small form-factor SMD package

Oscillators Applications

• General-purpose clock generation in embedded systems
• Timing reference for microprocessors and FPGAs
• Communication equipment requiring stable frequency sources
• Portable electronic devices utilizing battery power

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 4-SMD no lead package dimensions provided in the official datasheet to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 31.996875 MHz clock signal is required with low power consumption constraints. The LVCMOS interface ensures direct compatibility with standard digital logic families without additional level shifting. Consider the standby feature if power efficiency is critical for the application environment.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products. The series offers various frequencies within a standardized 4-SMD package, allowing designers to maintain consistent board layouts across different projects while adjusting only the frequency parameter.

Oscillators Replacement Considerations

Direct substitutes must match the 31.996875 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify electrical parameters such as phase noise and jitter against the original specification to ensure functional equivalence in timing-sensitive applications.