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Product Detailed Parameters
- Description：49.5667 MHz XO 1.8V 2.0X1.6MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：49.5667 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)：23mA
- 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 18QHTF21-49.5667-OE is a standard frequency crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 49.5667 MHz with an LVCMOS output interface. The device functions within a supply voltage range of 1.8V and features enable/disable control capabilities. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount applications.
Feature Summary
- Provides stable timing signals via LVCMOS output interface
- Supports active enable and disable control functionality
- Designed for low-voltage operation at 1.8V
Applications
- Digital signal processing clock generation
- Data communication interface synchronization
- Embedded system timing references
Procurement Notes
Verify the specific operating temperature range 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 4-SMD no-lead package footprint matches your PCB layout constraints to guarantee proper soldering and mechanical stability during assembly.
Selection Notes
Select this component when a precise 49.5667 MHz reference is required with low-power consumption. The LVCMOS output ensures compatibility with standard digital logic families. Consider the enable/disable feature if power management or clock gating is necessary for your application. Verify that the SMD form factor fits within the available board space constraints.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystals and oscillators. The series includes various frequencies and packages. This specific model is a standard XO variant, distinct from TCXO or VCTCXO types, offering basic frequency stability without external temperature compensation circuits.
FAQ
What is the output waveform type?
The output waveform is LVCMOS (Low Voltage Complementary Metal-Oxide-Semiconductor).
Does this oscillator support power control?
Yes, it features an enable/disable pin for controlling the output state.
