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Product Detailed Parameters
- Description：112.31 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：112.31 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)：28mA
- 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 18QHTF21-112.310-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 112.31 MHz with a frequency stability of 50 ppm. The device utilizes an LVCMOS output interface and functions at a supply voltage of 1.8V. It features enable/disable control capabilities and draws a maximum supply current of 28 mA. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.
Feature Summary
- Supports LVCMOS output interface for digital logic compatibility
- Includes hardware enable and disable functionality
- Utilizes a base crystal resonator for frequency generation
Applications
- Digital signal processing systems requiring precise clocking
- Communication equipment utilizing standard frequency references
- Embedded systems with space-constrained PCB layouts
Procurement Notes
Verify the specific ordering suffix to ensure correct configuration. Confirm that the required frequency tolerance and load capacitance match the target circuit design. Check for any specific environmental qualification requirements if operating in extreme conditions. Ensure the supply voltage matches the 1.8V specification before integration.
Selection Notes
Select this component when a low-profile surface-mount oscillator is required for high-frequency applications. Consider the 1.8V supply requirement and LVCMOS output compatibility with the host processor or FPGA. Evaluate the 50 ppm stability against system timing budgets. The small 2.0x1.6 mm footprint makes it suitable for dense board designs.
Part Context
This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies and packages. Mercury Electronic has over 50 years of experience in quartz crystal manufacturing, positioning itself as a pioneer in the Taiwan frequency control industry. The company produces a wide range of frequency control products including TCXOs and VCXOs.
Replacement Considerations
Direct substitutes include other 112.31 MHz XO components with identical 1.8V LVCMOS specifications and 4-SMD no-lead packaging. Verify pinout compatibility and thermal characteristics before substitution.
