18QHTF21-57.757-PD

Overview

The 18QHTF21-57.757-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 57.757 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down mode capability. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is engineered for applications requiring precise clock signals within a small form factor.

Feature Summary

• Supports low-voltage operation at 1.8V with LVCMOS output compatibility
• Includes standby and power-down functionality for energy management
• Utilizes a leadless 4-SMD surface-mount package for space-constrained designs

Applications

• General purpose clock signal generation in electronic circuits
• Embedded systems requiring precise timing references
• Portable devices utilizing low-voltage power supplies

Procurement Notes

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

Selection Notes

Select this model when a 57.757 MHz clock source is required with LVCMOS interface compatibility. Consider the 1.8V operating voltage constraint and the need for power-down capabilities. Evaluate the 2.0x1.6mm package size against available board space. Compare against other frequencies in the 18QHTF21 series if different timing standards are needed.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics Ind. Co. Ltd. The series offers various frequencies with consistent 1.8V operation and LVCMOS outputs. The 'PD' suffix indicates the inclusion of power-down functionality. These components are designed for high reliability in consumer and industrial electronics.

Replacement Considerations

Direct substitutes include other frequencies within the same 18QHTF21 series, such as 18QHTF21-51.200-PD or 18QHTF21-15.700-PD, provided the frequency difference is acceptable. Verify pinout and electrical characteristics match before substitution.