18QHTF21-57.735-PD

Overview

The 18QHTF21-57.735-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 57.735 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby function for power down capabilities. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated standby mode to reduce power consumption
• Compact 4-SMD no-lead surface mount package

Applications

• Digital signal processing circuits
• Communication equipment timing references
• Microcontroller clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Cross-reference the part number suffix with official documentation to confirm availability and manufacturing status.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS signaling standards. The small form factor makes it suitable for space-constrained designs. Consider the standby feature if power management is a priority. Verify that the 57.735 MHz frequency meets the specific data rate or clocking needs of the target application without requiring external dividers.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies within the LVCMOS format. The 'PD' suffix typically indicates a specific packaging or tape-and-reel configuration, though exact details require datasheet confirmation. This series is part of Mercury's broader portfolio of quartz-based timing solutions.

Replacement Considerations

Direct substitutes must match the 57.735 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Check manufacturer cross-reference lists for equivalent parts from other suppliers offering identical electrical specifications and pinout compatibility.