18QHTF21-11.050-PD

Overview

The 18QHTF21-11.050-PD is a fixed-frequency crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 11.05 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down function for standby mode control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is engineered for applications requiring precise timing signals within low-voltage digital systems.

Feature Summary

• LVCMOS output logic for standard digital interface compatibility
• Integrated power-down capability for energy-efficient standby operation
• Compact 4-SMD no-lead surface mount package design

Applications

• General purpose clock signal generation in embedded systems
• Timing reference for microcontrollers and processors
• Communication interface synchronization modules

Procurement Notes

Verify the specific suffix 'PD' confirms the power-down feature against the manufacturer's official datasheet. Ensure the operating temperature range meets system requirements. Confirm that the 1.8V supply voltage aligns with the target circuit design. Cross-reference the package dimensions to validate PCB footprint compatibility before finalizing procurement orders.

Selection Notes

Select this model when a 11.05 MHz frequency is required alongside low-power standby functionality. The LVCMOS output suits standard logic families. Consider the small form factor for space-constrained designs. Verify that the 1.8V supply requirement matches the available power rail in the application environment.

Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of low-profile crystal oscillators. The series offers various frequencies and supply voltages. The 'PD' suffix typically denotes power-down functionality, distinguishing it from enable/disable variants like the '-OE' suffix found in similar models within the same product family.

Replacement Considerations

Direct substitutes may include other 11.05 MHz LVCMOS oscillators in 4-SMD packages with power-down features. Verify pinout compatibility and electrical specifications such as jitter and phase noise. Check if alternative manufacturers offer equivalent performance metrics for seamless integration.