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Product Detailed Parameters
- Description：50.22 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：50.22 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 18QHTF21-50.220-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 50.22 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature for power management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.
Feature Summary
- Integrates enable/disable functionality for active power control
- Delivers stable LVCMOS clock signals at specified frequencies
- Designed for surface-mount integration via leadless SMD packaging
Applications
- Digital signal processing circuits requiring precise clocking
- Communication equipment utilizing standard frequency references
- Embedded systems needing low-voltage timing sources
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the enable pin logic levels are compatible with your controlling microcontroller or FPGA to guarantee proper activation and deactivation sequences during operation.
Selection Notes
Select this component when a 50.22 MHz reference is required alongside low-power standby capabilities. The LVCMOS interface suits digital logic families operating at 1.8V. Consider the 4-SMD form factor for space-constrained PCB layouts. Validate thermal performance within the specified operating temperature range for your intended environment.
Part Context
Mercury Electronic Ind. Co., Ltd. specializes in frequency control products, including quartz crystals and oscillators. This model belongs to their standard XO series, designed for general-purpose timing applications. The company has a long history in Taiwan's quartz industry, providing reliable components for various electronic sectors.
Replacement Considerations
Direct substitutes must match the 50.22 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no-lead package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter before swapping.
