18QHTF21-79.960-OE

Overview

The 18QHTF21-79.960-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd, operating at a fixed frequency of 79.96 MHz. It utilizes LVCMOS output logic and functions with a supply voltage of 1.8V. The device features an enable/disable control pin for power management flexibility. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0 x 1.6 mm. The component complies with RoHS standards and has a Moisture Sensitivity Level (MSL) rating of 1, indicating unlimited exposure to ambient conditions.

Feature Summary

• Integrates LVCMOS output logic for direct digital interface compatibility
• Includes enable/disable functionality for dynamic power control
• Utilizes a low-profile surface-mount package for space-constrained designs

Applications

• Clock signal generation for high-speed digital circuits
• Timing reference for communication interfaces
• System clock source for embedded microprocessors

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD no-lead package specifications to prevent assembly issues. Check for any specific reflow soldering profile recommendations provided by the manufacturer to maintain component integrity during manufacturing.

Selection Notes

Select this component when a precise 79.96 MHz timing source is required within a limited board area. The 1.8V operation makes it suitable for low-power portable devices or systems with strict voltage constraints. The enable pin allows for system-wide power savings when the clock is not actively needed. Consider the MSL 1 rating for ease of storage and handling without strict humidity controls compared to higher sensitivity levels.

Part Context

This oscillator belongs to the QHTF series from Mercury Electronics, which specializes in quartz frequency control products. The series offers various frequencies and voltage options, such as 2.5V variants, to suit different application needs. Mercury Electronics has been a pioneer in the crystal industry since 1973, providing reliable oscillators including TCXOs and VCXOs. This specific model represents a standard XO solution optimized for modern compact electronics.

FAQ

What is the output logic type of the 18QHTF21-79.960-OE?

The component uses LVCMOS (Low Voltage Complementary Metal-Oxide-Semiconductor) output logic.

Does the 18QHTF21-79.960-OE support power saving modes?

Yes, it includes an enable/disable pin that allows the user to control the oscillator's active state to save power.