18QHTF21-83.0333-PD

Overview

The 18QHTF21-83.0333-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 83.0333 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down control feature. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby and power-down functionality
• Provides LVCMOS digital output signals
• Utilizes a small form-factor surface-mount package

Applications

• Precision clock generation for digital circuits
• Data communication interface timing
• Embedded system synchronization
• Portable electronic devices requiring low power consumption

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail stability meets the oscillator's operational specifications. Ensure the PCB layout accommodates the 4-SMD no-lead footprint dimensions accurately to maintain signal integrity and thermal performance during assembly.

Selection Notes

Select this component when a precise 83.0333 MHz reference is required for LVCMOS-compatible logic families. The choice is driven by the need for low-voltage compatibility and integrated power management features. Evaluate the physical space constraints to ensure the 2.0x1.6mm package fits within the designated area on the printed circuit board without interfering with adjacent components.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies tailored for different timing applications. The 'PD' suffix indicates the inclusion of power-down capabilities, distinguishing it from standard continuous-operation variants within the same product line.

Replacement Considerations

Direct substitutes must match the 83.0333 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if available in public datasheets.