18QHTF21-13.488-PD

Overview

The 18QHTF21-13.488-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 13.488 MHz and utilizes LVCMOS output logic. The device is designed for low-power applications, featuring a supply voltage of 1.8V and supporting a Standby (Power Down) mode to reduce energy consumption during inactive periods. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm, suitable for space-constrained surface-mount designs.

Feature Summary

• Supports Low Voltage CMOS (LVCMOS) output logic for digital interface compatibility
• Includes Standby (Power Down) functionality to minimize power consumption
• Utilizes a compact 4-SMD No Lead surface-mount package

Applications

• Portable electronic devices requiring low power consumption
• Communication systems utilizing standard clock frequencies
• Embedded systems with limited board space

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Ensure 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. Check the operating temperature range specifications to ensure reliability under your intended environmental conditions.

Selection Notes

Select this component when a precise 13.488 MHz reference is required for LVCMOS-compatible circuits. The choice is driven by the need for a small form factor (2.0x1.6mm) and low standby current capabilities. Consider the 1.8V supply constraint and ensure the application benefits from the power-down feature for extended battery life or thermal management.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various standard frequencies tailored for digital clocking needs. The 'PD' suffix indicates the inclusion of a power-down control pin, distinguishing it from continuous-operation variants within the same physical footprint family.

Replacement Considerations

Direct replacements must match the 13.488 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify equivalent electrical parameters such as phase noise and jitter if specified in your design. Cross-reference with other manufacturers offering similar low-profile oscillators with standby functionality.