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Product Detailed Parameters
- Description：91.7755 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：91.7755 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 18QHTF21-91.7755-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 91.7755 MHz and utilizes LVCMOS output logic levels. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature for power management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0x1.6mm, suitable for surface-mount applications requiring precise timing signals.
Feature Summary
- Provides stable 91.7755 MHz timing signals via LVCMOS interface
- Features low-voltage operation at 1.8V for energy efficiency
- Includes hardware enable/disable pin for active power control
- Utilizes small form-factor 4-SMD no-lead packaging
Applications
- High-speed digital signal processing circuits
- Communication equipment requiring precise clock synchronization
- Embedded systems with strict size constraints
- Consumer electronics utilizing LVCMOS logic families
Procurement Notes
Verify the specific suffix 'OE' against manufacturer documentation to confirm the enable/disable functionality and voltage specifications. Ensure the 4-SMD no-lead footprint matches the PCB design requirements. Cross-reference the 91.7755 MHz frequency tolerance with system timing budgets before finalizing procurement decisions.
Selection Notes
Select this component when a 1.8V supply voltage is mandatory and space is limited due to the 2.0x1.6mm package size. The enable/disable feature makes it suitable for battery-powered devices requiring power optimization. Confirm that the LVCMOS output swing is compatible with the receiving logic inputs of the target circuit.
Part Context
Mercury Electronics specializes in frequency control products including quartz crystals and oscillators. This model belongs to their XO (Standard) series, designed for general-purpose timing applications. The company has established itself as a pioneer in the Taiwan crystal industry since 1973, focusing on reliable timing solutions.
Replacement Considerations
The part number 18QHTF21-91.7755-PD shares the same frequency and package but may differ in tape-and-reel packaging or specific electrical tolerances. Verify functional equivalence regarding the enable/disable mechanism and voltage levels before substitution.
