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Product Detailed Parameters
- Description：57.272727 M XO 1.8V 2.0X1.6MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：57.272727 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)：24mA
- 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 18QHTF21-57.272727-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 57.272727 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes enable/disable control capabilities. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component is designed for surface-mount applications requiring precise timing signals.
Feature Summary
- Generates a stable 57.272727 MHz clock signal using LVCMOS logic levels
- Operates on a single 1.8V power supply with integrated enable and disable functionality
- Utilizes a small form factor 4-SMD no-lead package suitable for space-constrained designs
Applications
- Digital signal processing systems requiring precise clock synchronization
- Communication interfaces utilizing LVCMOS compatible protocols
- Embedded systems needing low-voltage timing sources
Procurement Notes
Verify the specific suffix (OE) against official Mercury Electronics documentation to confirm pinout and electrical characteristics. Ensure the 1.8V supply requirement aligns with target circuit design. Confirm the 4-SMD package footprint matches PCB layout constraints before finalizing procurement orders.
Selection Notes
Select this component when a 57.272727 MHz frequency is strictly required. The 1.8V operating voltage dictates compatibility with low-power digital logic families. The enable/disable feature allows for power management strategies in battery-operated devices. Verify thermal performance within the specified operating temperature range.
Part Context
This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The 18 prefix indicates the 1.8V supply variant. The model number encodes the specific frequency and package type for identification within the manufacturer's catalog.
Replacement Considerations
Direct substitutes must match the 57.272727 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Check datasheets for equivalent parts from other manufacturers ensuring identical pin configurations and electrical specifications.
