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Product Detailed Parameters
- Description：75.56 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：75.56 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 18QHTF21-75.560-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 75.56 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.
Feature Summary
- Supports Enable/Disable functionality for power management
- Utilizes LVCMOS output logic for digital interface compatibility
- Operates on a 1.8V supply voltage
Applications
- Digital signal processing systems
- Communication equipment clocking
- Embedded system timing references
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Ensure the 1.8V supply rail stability meets the oscillator's specifications. Confirm that the 4-SMD no-lead package footprint aligns with the PCB design guidelines provided by Mercury Electronics Ind. Co. Ltd.
Selection Notes
Select this component when a precise 75.56 MHz reference is required in space-constrained designs. The 1.8V operation makes it suitable for modern low-power digital circuits. Consider the enable pin feature if dynamic power saving is necessary. Verify temperature range compliance for the intended operating environment.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal and oscillator products. The manufacturer has a history dating back to 1973, focusing on frequency control solutions including TCXOs and VCXOs. This specific model represents a standard XO variant within their portfolio.
Replacement Considerations
Direct substitutes include other 75.56 MHz LVCMOS oscillators in 2.0x1.6mm packages. Check electrical parameters such as phase noise and jitter against the original specification. Ensure the replacement supports the same 1.8V supply and enable logic levels.
