18QHTF21-12.09375-OE

Overview

The 18QHTF21-12.09375-OE is a crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 12.09375 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Supports enable and disable functionality for power management
• Utilizes LVCMOS output logic for digital interface compatibility
• Designed in a small surface-mount package for space-constrained applications

Applications

• Portable electronic devices requiring low power consumption
• Digital signal processing circuits
• Communication equipment timing references

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Ensure that the 1.8V supply voltage aligns with your target circuit's power rails. Confirm that the LVCMOS output levels are compatible with the receiving logic inputs to prevent signal integrity issues or potential damage to connected components.

Selection Notes

Select this component when a precise 12.09375 MHz clock source is needed within a 2.0x1.6mm footprint. Consider the 1.8V operating voltage constraint during system architecture planning. The enable pin feature allows for dynamic power control, making it suitable for battery-operated systems where standby current reduction is critical for extending operational life.

Part Context

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

Replacement Considerations

Direct substitutes must match the 12.09375 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm SMD package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if strict timing performance is required. Cross-reference with other manufacturers offering similar form-factor oscillators.