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Product Detailed Parameters
- Description：57.353667 M XO 1.8V 2.0X1.6MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：57.353667 MHz
- Function：Standby (Power Down)
- 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 18QHTF21-57.353667-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co. Ltd. It operates at a fixed frequency of 57.353667 MHz and utilizes LVCMOS output logic levels. The device is designed for operation with a supply voltage of 1.8V. It features a standby mode function, allowing for power down capabilities to reduce energy consumption when the oscillator is not in active use. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes.
Feature Summary
- LVCMOS output logic interface
- Integrated standby power-down capability
- Compact 4-SMD no-lead surface mount package
Applications
- General purpose timing clock generation
- Digital signal processing circuits
- Communication equipment modules
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure that the 1.8V supply rail is stable and within the specified operating range to maintain oscillator performance. Confirm that the PCB footprint matches the 4-SMD no-lead package dimensions provided in the official datasheet to ensure proper soldering and mechanical stability during assembly.
Selection Notes
Select this component when a precise 57.353667 MHz reference is required with low power consumption needs. The 1.8V supply voltage makes it suitable for modern low-voltage digital systems. Consider the standby feature if power management is critical. Verify compatibility with LVCMOS logic levels used in the target application to ensure signal integrity without additional level shifting components.
Part Context
This part belongs to the Mercury Electronics XO series, which provides standard frequency control solutions. Mercury Electronic Ind. Co., Ltd. is a Taiwan-based manufacturer with a history in quartz crystal production. This specific model represents a standard frequency option within their portfolio, utilizing established surface-mount technology for reliable integration into various electronic assemblies.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. When replacing, ensure the new component matches the 57.353667 MHz frequency, 1.8V supply voltage, LVCMOS output type, and 4-SMD package dimensions exactly.
