18QHTF21-29.500-PD

Oscillators Overview

The 18QHTF21-29.500-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 29.5 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a power-down standby function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is designed for applications requiring precise clock signals in space-constrained electronic systems.

Oscillators Feature Summary

• Provides stable 29.5 MHz clock signal generation using LVCMOS output interface
• Supports low-voltage operation at 1.8V with dedicated power-down standby mode
• Utilizes a compact 4-SMD no-lead surface-mount package for efficient PCB integration

Oscillators Applications

• General-purpose digital system clocking
• Embedded controller timing references
• Portable electronic devices requiring low-power operation

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against your circuit design before procurement. Ensure that the 1.8V supply rail is stable and within tolerance to maintain frequency accuracy. Confirm that the PCB footprint matches the 2.0x1.6mm SMD package dimensions to avoid assembly issues. Cross-reference the datasheet for any specific soldering profile recommendations.

Oscillators Selection Notes

Select this oscillator when a 29.5 MHz frequency is required with LVCMOS compatibility. Consider the 1.8V supply constraint and the availability of a power-down feature for power-sensitive designs. Evaluate the small 4-SMD package size against available board space. Compare performance metrics such as jitter and stability if high-precision timing is critical for the application.

Oscillators Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of surface-mount crystal oscillators. The series offers various frequencies and voltage options, including 3.3V variants like the 3QHTF21 model. The 'PD' suffix indicates the inclusion of a power-down control pin, allowing for active standby modes to reduce power consumption during idle periods.

Oscillators Replacement Considerations

Direct replacements must match the 29.5 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility, especially the power-down control pin assignment. Check if alternative manufacturers offer equivalent specifications in the same footprint to ensure seamless integration without redesign.