18QHTF21-33.1776-PD

Oscillators Overview

The 18QHTF21-33.1776-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 33.1776 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby power-down mode to reduce energy consumption during inactivity. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby power-down functionality
• Utilizes LVCMOS output logic interface

Oscillators Applications

• General clock signal generation
• Digital circuit timing reference
• Embedded system synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Ensure that the 1.8V supply rail is stable and within the specified operating range to maintain signal integrity. Confirm that the PCB footprint matches the 2.0x1.6mm SMD package dimensions to avoid assembly issues.

Oscillators Selection Notes

Select this component when a precise 33.1776 MHz clock source is required for low-power applications. The choice is driven by the need for a small form factor and the ability to enter a low-power standby state. Consider the LVCMOS compatibility with downstream digital logic levels to ensure proper signal transmission without additional level shifting.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series is characterized by its small footprint and low voltage operation, catering to modern portable and space-constrained electronic designs. The manufacturer has extensive experience in quartz crystal production.

Oscillators Replacement Considerations

Direct replacements must match the 33.1776 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package size. Verify pinout compatibility and electrical specifications such as phase noise and jitter if critical to the system performance.