18QHTF21-91.000-PD

Overview

The 18QHTF21-91.000-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 91 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby (power down) capability for energy management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0mm x 1.6mm. The component is designed for applications requiring precise timing signals within a small form factor.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode functionality to reduce power consumption
• Utilizes a surface-mount 4-SMD no lead package design

Applications

• Digital signal processing systems
• Communication equipment timing references
• Embedded system clock generation

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD package footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet for your application environment.

Selection Notes

Select this component when a 91 MHz clock signal is required with low voltage operation. Consider the LVCMOS output level compatibility with downstream logic gates. Evaluate the physical size constraints given the 2.0x1.6mm package. Assess the need for power-down features to manage system energy efficiency during idle periods.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The 'PD' suffix typically indicates the presence of a power-down pin or function. These components are part of Mercury's portfolio of frequency control products, which includes crystals and filters.

Replacement Considerations

Direct replacements must match the 91 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility if substituting with other manufacturers' parts. Ensure equivalent electrical specifications such as phase noise and stability are met.