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Product Detailed Parameters
- Description：57.573667 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：57.573667 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 18QHTF21-57.573667-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 57.573667 MHz and utilizes LVCMOS output logic levels. The device supports an enable/disable control function for power management. It requires a supply voltage of 1.8V and is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.
Feature Summary
- Supports active low or high enable/disable control functionality
- Provides stable LVCMOS clock signals for digital circuits
- Features a leadless surface-mount design for automated assembly
Applications
- Embedded system clock generation
- Communication interface timing
- Microcontroller peripheral synchronization
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail is stable within the operational limits specified in the official datasheet. Ensure the PCB footprint matches the 2.0x1.6mm 4-SMD no-lead package dimensions to prevent soldering defects during assembly.
Selection Notes
Select this component when a precise 57.573667 MHz reference is required for LVCMOS-compatible logic families. The choice depends on the availability of a 1.8V power supply and the need for an enable pin to manage power consumption during idle states. Consider the small form factor suitable for space-constrained portable electronics.
Part Context
This part belongs to the QHTF series of standard oscillators from Mercury Electronics. The series is characterized by low phase noise and high stability. The 'OE' suffix typically indicates the inclusion of an enable/disable control feature, distinguishing it from basic continuous-output variants within the same frequency family.
Replacement Considerations
Direct replacements must match the 57.573667 MHz frequency, 1.8V voltage, and 4-SMD no-lead package. Verify compatibility of the enable signal polarity and LVCMOS output swing with the receiving logic gate inputs to ensure reliable operation.
