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Product Detailed Parameters
- Description：85.504054 M XO 1.8V 2.0X1.6MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：85.504054 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 18QHTF21-85.504054-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 85.504054 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes a standby or power-down function. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- Supports low-voltage operation at 1.8V
- Integrates standby and power-down control capabilities
- Provides LVCMOS digital output signals
- Utilizes a small-footprint surface-mount package
Applications
- General clock generation for embedded systems
- Timing reference for consumer electronics
- Signal processing circuits requiring precise frequency standards
- Portable devices with space constraints
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply rail is stable and within the specified operating range to ensure reliable oscillator performance. Ensure the PCB layout accommodates the 4-SMD no-lead package dimensions accurately to prevent soldering defects.
Selection Notes
Select this component when a precise 85.504054 MHz clock signal is required for LVCMOS-compatible logic interfaces. Consider the 1.8V supply requirement and the availability of power-down features for energy management. Evaluate the physical size constraints of the application to ensure the 2.0x1.6mm package fits within the designated footprint on the printed circuit board.
Part Context
This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and voltage options, typically featuring LVCMOS outputs and compact SMD packages suitable for modern electronic designs. The suffix PD indicates the inclusion of power-down functionality.
Replacement Considerations
Compatible substitutes include other 1.8V LVCMOS oscillators in 2.0x1.6mm packages with similar frequency specifications. Verify pin compatibility and electrical parameters such as phase noise and jitter before substitution.
