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Product Detailed Parameters
- Description：123.52 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：123.52 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)：28mA
- 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 18QHTF21-123.520-OE is a crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 123.52 MHz and utilizes LVCMOS output levels. The device supports a supply voltage of 1.8V and includes an Enable/Disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.
Feature Summary
- Supports standard enable/disable functionality for power management
- Utilizes LVCMOS output interface for digital logic compatibility
- Designed for surface-mount assembly in small form factors
Applications
- Digital signal processing systems requiring precise clocking
- Communication equipment utilizing high-frequency data transmission
- Embedded systems with strict size constraints
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the system design specifications before procurement. Confirm that the 1.8V supply voltage aligns with the target platform's power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout to prevent soldering defects during assembly.
Selection Notes
Select this component when a 123.52 MHz clock source is required within a 2.0x1.6 mm footprint. Consider the 1.8V operating voltage constraint relative to other available voltage options. Evaluate the enable/disable pin utility for power-sensitive applications compared to always-on oscillator alternatives.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, characterized by low-profile SMD packaging. The series typically offers various frequency options within the same physical envelope, allowing for design flexibility while maintaining consistent board space utilization across different product variants.
Replacement Considerations
Direct substitutes include other 123.52 MHz oscillators in 2.0x1.6mm packages with LVCMOS outputs. Verify pinout compatibility and electrical characteristics such as phase noise and jitter specifications to ensure functional equivalence without circuit redesign.
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 to control the output state.
