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Product Detailed Parameters
- Description：65.53625 MHz XO 1.8V 2.0X1.6 PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：65.53625 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)：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 18QHTF21-65.53625-PD is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 65.53625 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby function for power-down control. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.
Feature Summary
- LVCMOS output interface
- Standby (Power Down) capability
- Quartz crystal technology
Applications
- General purpose clock generation
- Digital signal processing systems
- Communication equipment timing
Procurement Notes
Verify the specific ordering suffix to ensure compatibility with required voltage levels and output types. Confirm that the 1.8V supply requirement aligns with the target system design. Check package dimensions against PCB footprint specifications before integration. Ensure environmental conditions meet the operating temperature range defined in the official datasheet.
Selection Notes
Select this component when a low-voltage 1.8V operation is required alongside LVCMOS outputs. Consider the 4-SMD no-lead package for space-constrained designs. Evaluate the need for standby functionality to manage power consumption during idle periods. Compare frequency stability requirements against standard oscillator specifications.
Part Context
This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options within a standardized small outline package format. It represents a standard solution for basic clocking needs in consumer and industrial electronics.
Replacement Considerations
Direct substitutes may include other 1.8V LVCMOS oscillators in 4-SMD packages from different manufacturers. Verify pinout compatibility and frequency tolerance before substitution. Cross-reference electrical parameters such as rise/fall times and duty cycle.
FAQ
Does the 18QHTF21-65.53625-PD support differential outputs?
No, this model uses LVCMOS single-ended output logic.
What is the supply voltage for this oscillator?
The device operates at 1.8V.
