SiT8021AI-J4-18S-2.048000E
Overview
The SiT8021AI-J4-18S-2.048000E is an ultra-small MEMS oscillator operating at 2.048 MHz with a 1.8V supply. It is part of the Sitime SOT23-style footprint series but utilizes a significantly more compact 1.5mm x 0.8mm package to save board space in dense designs. This oscillator provides a stable clock source with 100ppm frequency tolerance across an industrial temperature range of -40 to +85 degrees Celsius.
Why Choose This Part
The MEMS-based architecture offers superior reliability and shock resistance compared to traditional quartz crystal oscillators. Its 1.5mm x 0.8mm package size is ideal for high-density layouts, while the 1.8V operation ensures compatibility with modern low-voltage digital ICs.
Applications
Getting Started
To integrate this oscillator, ensure the 1.8V supply is decoupled with a 0.1uF ceramic capacitor placed close to the VDD pin. No external load capacitors are required as they are integrated within the MEMS structure. Standard SMT reflow processes can be used for assembly on the 4-pin footprint.
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