18QHTF21-82.620-OE

Overview

The 18QHTF21-82.620-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 82.62 MHz and utilizes LVCMOS output logic levels. The device is designed for low voltage applications, specifically requiring a 1.8V supply. A key functional characteristic is the inclusion of an active-low enable/disable control input, allowing for power management in system designs. The component is housed in a compact 4-SMD, no lead package, suitable for surface mount assembly on printed circuit boards.

Feature Summary

• Provides stable clock signals via LVCMOS output interface
• Features active-low enable/disable pin for power control
• Operates with 1.8V supply voltage
• Utilizes 4-SMD no lead surface mount packaging

Applications

• Digital signal processing systems requiring precise timing
• Communication equipment utilizing LVCMOS interfaces
• Embedded systems needing low-power clock sources
• Consumer electronics with space-constrained layouts

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before integration. Confirm that the 1.8V supply rail matches the target system voltage. Ensure PCB footprint compatibility with the 4-SMD no lead package dimensions. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliability.

Selection Notes

Select this component when a fixed 82.62 MHz clock source is required with LVCMOS compatibility. Consider the 1.8V operating voltage constraint relative to other system rails. Evaluate the enable/disable functionality if power saving modes are necessary. Compare the physical size of the 4-SMD package against available board space constraints.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics Ind. Co. Ltd, which offers various frequency options within the same package and electrical specification framework. The series typically includes models ranging from lower frequencies up to higher ranges, all sharing the 1.8V LVCMOS and enable/disable features. This specific model represents the 82.62 MHz variant within that standardized product line.

Replacement Considerations

Direct substitutes must match the 82.62 MHz frequency, 1.8V LVCMOS output, and 4-SMD no lead package. Verify equivalent enable/disable functionality. Cross-reference with other manufacturers offering similar SMD oscillators with identical pinouts and electrical characteristics.