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Product Detailed Parameters
- Description：57.757 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：57.757 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 18QHTF21-57.757-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 57.757 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, no lead package, suitable for surface-mount assembly on printed circuit boards.
Feature Summary
- LVCMOS output logic for digital interface compatibility
- Integrated enable/disable control functionality
- Low voltage operation at 1.8V supply
- Surface-mount 4-SMD no lead package design
Applications
- General clock signal generation in electronic circuits
- Timing reference for digital systems requiring 57.757 MHz
- Embedded devices utilizing LVCMOS interfaces
Procurement Notes
Verify the exact part number against official Mercury Electronics documentation to ensure accuracy. Confirm that the 1.8V supply voltage and LVCMOS output levels match the target system requirements. Check the datasheet for specific electrical characteristics such as load capacitance and drive strength. Ensure the 4-SMD package dimensions are compatible with the PCB footprint. Validate the enable/disable pin configuration if active control is required in the design.
Selection Notes
Select this component when a precise 57.757 MHz clock source is needed for low-power applications. The 1.8V operating voltage makes it suitable for modern portable or battery-operated devices. The LVCMOS output ensures direct interfacing with standard digital logic without additional level shifting. Consider the enable/disable feature if power management during idle states is a priority. Verify thermal and environmental specifications against the intended operating conditions.
Part Context
Mercury Electronics Ind. Co. Ltd is a manufacturer specializing in frequency control products, including quartz crystals and oscillators. The 18QHTF21 series represents their line of surface-mount crystal oscillators. This specific model provides a stable frequency reference for various electronic applications. The company has a history of producing quartz-based components for the electronics industry.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided data. Consult official Mercury Electronics documentation for potential cross-references or equivalent models. Ensure any replacement matches the 57.757 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package type.
