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Product Detailed Parameters
- Description：13.5608 MHz XO 1.8V 2.0X1.6MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：13.5608 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)：22mA
- 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 18QHTF21-13.5608-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 13.5608 MHz and utilizes LVCMOS output logic levels. The device requires a 1.8V supply voltage and features a standby function for power down capabilities. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is designed for applications requiring precise clock signals within portable electronic systems.
Feature Summary
- Supports LVCMOS output logic for digital interface compatibility
- Includes standby mode functionality to reduce power consumption
- Utilizes a leadless SMD package for surface mount assembly
Applications
- Battery-powered portable devices
- General purpose clock signal generation
- Digital circuit timing references
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system's power rail specifications. Ensure the 4-SMD no-lead package footprint matches the PCB layout constraints. Check for any specific handling instructions regarding electrostatic discharge sensitivity during assembly processes.
Selection Notes
Select this model when a 13.5608 MHz clock source is required with low voltage operation. Consider the LVCMOS output compatibility with downstream digital components. Evaluate the power consumption characteristics if battery life is a critical constraint. Verify that the physical dimensions fit within the available board space for the application.
Part Context
Mercury Electronics Ind. Co. Ltd has been manufacturing frequency control products since 1973. The company is recognized as a pioneer in the quartz crystal industry in Taiwan. Their product portfolio includes various oscillators such as TCXOs, VCTCXOs, and OCXOs. This specific part belongs to their standard XO series designed for general electronic applications.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Users should verify pinout and electrical parameter compatibility if considering alternative manufacturers. Direct replacement requires matching the 13.5608 MHz frequency and 1.8V supply voltage.
