18QHTF21-59.780-PD

Overview

The 18QHTF21-59.780-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 59.78 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a Standby (Power Down) function to reduce power consumption when inactive. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports Low Voltage Complementary Metal-Oxide-Semiconductor (LVCMOS) output logic levels
• Includes a standby mode for power down functionality
• Utilizes a surface-mount 4-pin no-lead package design

Applications

• General clock signal generation in electronic circuits
• Timing reference for low-voltage digital systems
• Embedded devices requiring compact oscillator solutions

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system's power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to guarantee proper assembly and electrical connectivity.

Selection Notes

Select this component when a precise 59.78 MHz timing source is required for 1.8V logic interfaces. Consider the small form factor for space-constrained designs. Evaluate if the standard performance specifications meet the application's jitter and stability needs compared to higher-grade alternatives.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies within a standardized 2.0x1.6mm package. The 'PD' suffix indicates the inclusion of a power-down control feature, distinguishing it from continuous-output variants.

Replacement Considerations

Direct substitutes include other 18QHTF21 series parts with identical pinout and voltage but different frequencies, such as 18QHTF21-68.080-PD or 18QHTF21-80.000-PD, provided the frequency difference is acceptable for the application.