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Product Detailed Parameters
- Description：85.768 MHz XO 1.8V 2.0X1.6 MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：85.768 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 18QHTF21-85.768-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 85.768 MHz and utilizes LVCMOS output logic levels. The device requires a 1.8V supply voltage and features a Standby (Power Down) control function for power management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes.
Feature Summary
- Supports Standby (Power Down) functionality
- Utilizes LVCMOS output interface
Applications
- General clock signal generation
- Digital circuit timing reference
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD No Lead package dimensions fit within your PCB layout constraints. Cross-reference the manufacturer datasheet for detailed electrical characteristics to guarantee compatibility with your target application environment.
Selection Notes
Select this component when an 85.768 MHz clock source is required with low-voltage operation. Consider the LVCMOS output compatibility with downstream digital logic families. Evaluate the need for standby control capabilities to optimize system power consumption. Verify that the small form factor meets space limitations on the printed circuit board.
Part Context
This part belongs to the 18QHTF21 series of standard oscillators from Mercury Electronics. The series offers various frequencies with consistent packaging and electrical characteristics. Mercury Electronics specializes in frequency control products, including crystals and oscillators, providing reliable timing solutions for electronic systems.
Replacement Considerations
Direct substitutes must match the 85.768 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and electrical parameters such as phase noise and jitter if critical. Consult manufacturer cross-reference lists for verified alternatives.
