18QHTF21-33.968-PD

Oscillators Overview

The 18QHTF21-33.968-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind., Co., Ltd. It operates at a fixed frequency of 33.968 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down capability via a standby control input. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0 mm by 1.6 mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes power-down functionality for energy management
• Utilizes LVCMOS output interface

Oscillators Applications

• General clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required packaging formats. Confirm that the 1.8V supply voltage aligns with target system requirements. Check datasheet specifications for operating temperature range and load capacitance details before integration into final designs.

Oscillators Selection Notes

Select this component when a precise 33.968 MHz reference is required in space-constrained applications. The small 2.0x1.6 mm footprint makes it suitable for dense PCB layouts. Ensure the design supports the 1.8V logic level and provides necessary control signals for the power-down feature if active power management is needed.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series includes various oscillators such as TCXOs and VCXOs. This specific model represents a standard XO variant optimized for low-power digital applications requiring stable clock frequencies.

Oscillators Replacement Considerations

Direct substitutes may include other 33.968 MHz LVCMOS oscillators in 4-SMD packages from different manufacturers. Verify pinout compatibility and electrical parameters such as current consumption and startup time. Ensure the replacement supports the same 1.8V supply and physical dimensions.