18QHTF21-22.576049-PD

Oscillators Overview

The 18QHTF21-22.576049-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 22.576049 MHz with LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby (power down) function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. The unit offers a frequency stability of ±50ppm and is designed for operation within standard industrial temperature ranges.

Oscillators Feature Summary

• Supports low-voltage 1.8V operation with integrated power-down capability
• Provides precise clock signals via LVCMOS output interface
• Utilizes a miniature surface-mount package for space-constrained designs

Oscillators Applications

• Digital signal processing systems requiring precise timing
• Communication equipment utilizing standard clock frequencies
• Embedded control boards needing compact oscillators

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against your circuit design before procurement. Ensure that the 1.8V supply rail is stable to maintain the specified ±50ppm frequency stability. Confirm that the PCB footprint matches the 2.0x1.6mm SMD no-lead package dimensions to avoid assembly issues during manufacturing.

Oscillators Selection Notes

Select this component when a 22.576049 MHz reference is required for LVCMOS-compatible digital circuits. Consider the 1.8V supply constraint and the availability of a power-down pin for energy management. Evaluate the physical size constraints against the 2.0x1.6mm package profile to ensure compatibility with the target board layout.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard XO oscillators from Mercury Electronics. The series typically features LVCMOS outputs and various supply voltages. The suffix PD indicates the inclusion of a power-down feature, allowing the oscillator to be disabled to reduce current consumption when not in active use.

Oscillators Replacement Considerations

Direct replacements must match the 22.576049 MHz frequency, LVCMOS output type, and 1.8V supply voltage. Verify that any substitute part supports the same 2.0x1.6mm package and includes the power-down functionality if required by the system design.