18QHTF21-88.750-PD

Overview

The 18QHTF21-88.750-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 88.75 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a Standby (Power Down) function for power management. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Supports Low Voltage CMOS (LVCMOS) output interface
• Includes Standby mode for power down capability
• Utilizes a surface-mount 4-SMD no lead package

Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded system timing references

Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required voltage levels and output types. Confirm that the 1.8V supply requirement aligns with the target circuit design. Check for availability of the Power Down feature if low-power operation is necessary. Ensure the 4-SMD package footprint matches the PCB layout constraints. Validate the operating temperature range against environmental specifications.

Selection Notes

Select this component when a precise 88.75 MHz reference is needed with low voltage operation. The LVCMOS output ensures compatibility with standard digital logic families. The integrated standby function aids in reducing power consumption during idle periods. Consider the small form factor for space-constrained designs. Verify that the manufacturer's specifications meet the jitter and stability requirements of the application.

Part Context

This part belongs to the QHTF series of crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The 'PD' suffix typically indicates the inclusion of a power-down control feature. The 18 prefix denotes the 1.8V supply voltage variant. This family is designed for general-purpose timing applications requiring reliable performance.

Replacement Considerations

Direct substitutes include other 88.75 MHz LVCMOS oscillators with identical 1.8V supply and 4-SMD 2.0x1.6mm footprints. Verify pinout compatibility before replacement. Ensure equivalent electrical parameters such as load capacitance and drive strength are matched.