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Product Detailed Parameters
- Description：13.54 MHz XO 1.8V 2.0X1.6 MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：13.54 MHz
- Function：Enable/Disable
- Output：LVCMOS
- Voltage - Supply：1.8V
- Frequency Stability：±50ppm
- Absolute Pull Range (APR)：-
- Operating Temperature：-40°C ~ 85°C
- Spread Spectrum Bandwidth：-
- Current - Supply (Max)：22mA
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：4-SMD, No Lead
- Size / Dimension：0.079" L x 0.063" W (2.00mm x 1.60mm)
- Height - Seated (Max)：0.031" (0.80mm)
- Supplier Device Package：-
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Overview
The 18QHTF21-13.540-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 13.54 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.
Feature Summary
- LVCMOS output logic for digital interface compatibility
- Integrated enable/disable control functionality
- Compact 4-SMD no-lead surface mount package
Applications
- Digital signal processing systems
- Communication equipment timing references
- Embedded microcontroller clock sources
Procurement Notes
Verify the specific ordering suffix against the manufacturer's current datasheet to ensure correct voltage and load capacitance specifications. Confirm that the enable pin configuration matches the system design requirements. Cross-reference the package dimensions with the PCB footprint library to guarantee mechanical compatibility during assembly.
Selection Notes
Select this component when a low-voltage 1.8V LVCMOS oscillator is required for space-constrained designs. Ensure the application environment temperature range aligns with the specified operating limits. Consider the enable feature if power conservation is critical during idle states compared to always-on alternatives.
Part Context
This part belongs to the Mercury Electronic SMD oscillator series, which provides various frequency options in standardized packages. The 18QHTF21 series typically offers stability suitable for general-purpose timing applications. It complements other Mercury products like TCXOs and VCXOs for more demanding phase noise or drift requirements.
Replacement Considerations
Direct substitutes include other 13.54 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Verify equivalent electrical parameters such as supply voltage, output swing, and load capacitance before substitution.
