18QHTF21-57.748-PD

Overview

The 18QHTF21-57.748-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 57.748 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0mm x 1.6mm. This component is designed for precise timing applications requiring low voltage operation and small form factor integration.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby and power-down functionality to reduce power consumption
• Utilizes a compact 4-SMD no lead surface mount package

Applications

• General purpose timing circuits
• Digital signal processing systems
• Communication equipment requiring precise clock signals

Procurement Notes

Verify the specific frequency tolerance and operating temperature range against the official datasheet before procurement. Ensure the 1.8V supply voltage aligns with the target system design. Confirm that the 4-SMD no lead package footprint matches the PCB layout requirements. Check for any specific ordering suffixes that may alter electrical characteristics or packaging quantities.

Selection Notes

Select this component when a low-voltage 1.8V oscillator is required for space-constrained designs. The LVCMOS output ensures compatibility with standard digital logic families. Consider the standby feature if power efficiency during idle states is a critical design parameter. Verify that the 57.748 MHz frequency meets the system clock requirements without additional frequency multiplication.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystals and oscillators. The series typically offers various frequencies and packages tailored for consumer electronics and industrial applications. Mercury Electronics has established itself as a supplier of frequency control products since 1973, focusing on reliability and precision in timing solutions.

Replacement Considerations

Direct substitutes include other 57.748 MHz LVCMOS oscillators in 2.0x1.6mm packages from compatible manufacturers. Ensure replacement parts match the 1.8V supply voltage and support standby modes. Verify pinout compatibility and thermal performance similarities to maintain system integrity.