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Product Detailed Parameters
- Description：83.3125 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：83.3125 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)：26mA
- 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 18QHTF21-83.3125-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 83.3125 MHz with LVCMOS output logic. The device requires a 1.8V supply voltage and features an enable/disable control function. It is housed in a compact 4-SMD, no lead package suitable for surface mount applications.
Feature Summary
- LVCMOS output logic for digital interface compatibility
- Integrated enable/disable control functionality
- Surface mount 4-SMD package design
Applications
- General purpose clock signal generation
- Digital circuit timing references
- Embedded system clock sources
Procurement Notes
Verify the specific supply voltage requirement against the target circuit design, as this model specifies 1.8V operation. Confirm that the LVCMOS output levels are compatible with the receiving logic inputs. Ensure the 4-SMD footprint matches the PCB layout constraints. Check for any specific enable pin requirements if power management is part of the system architecture.
Selection Notes
Select this component when a precise 83.3125 MHz clock source is required with low voltage operation. Consider the 1.8V supply constraint and LVCMOS output characteristics during system design. Evaluate the enable/disable feature if dynamic power management or clock gating is necessary for the application.
Part Context
This oscillator belongs to the QHTF series from Mercury Electronics, designed for high-frequency timing applications. The manufacturer specializes in quartz crystals and oscillators, offering various packages and frequencies. This specific model provides a standard XO solution with integrated control capabilities.
Replacement Considerations
Direct substitutes include other 83.3125 MHz LVCMOS oscillators with 1.8V supply and 4-SMD packages. Verify pinout compatibility and electrical specifications before substitution. Models like 18QHTF21 variants with different frequencies may share physical dimensions but require frequency adjustment.
