SIT8208AI-8F-28E-4.096000T

Oscillators Overview

The SiTime SIT8208AI-8F-28E-4.096000T is a MEMS standard clock oscillator operating at 4.096 MHz with ±10 ppm frequency stability. It functions within an industrial temperature range of -40°C to +85°C and accepts a supply voltage of 2.8V (min 2.7V, max 3.3V). The device features LVCMOS/LVTTL output formats and draws a maximum supply current of 33 mA. Packaged in a 4-SMD, no-lead footprint, it serves as a drop-in replacement for legacy quartz oscillators.

Oscillators Feature Summary

• MEMS-based construction providing high reliability and resistance to shock and vibration compared to traditional quartz resonators.
• Ultra-low phase jitter performance specified at 0.5 ps RMS between 12 kHz and 20 MHz offsets.
• Configurable via Time Machine II software allowing instant sampling and field programmability.

Oscillators Applications

• Computing systems requiring precise clock synchronization.
• Storage area networks and SAS interfaces.
• Ethernet and telecommunications infrastructure equipment.

Oscillators Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm that the 2.8V supply voltage rating aligns with the target system's power rail capabilities. Ensure the 4.096 MHz frequency matches the design requirements exactly, as this parameter is fixed for this part number. Check compatibility with the host circuit's input impedance and load capacitance specifications.

Oscillators Selection Notes

Select this component when replacing existing quartz or SAW oscillators to improve reliability and reduce lead times. Choose the 2.8V variant if the system operates on a 2.8V rail; otherwise, consider other voltage options within the SiT8208 family. The industrial temperature range makes it suitable for harsh environments where commercial grade parts might fail. Verify package dimensions against the PCB footprint constraints.

Oscillators Part Context

This model belongs to the SiT8208 series of ultra-performance MEMS oscillators from SiTime. The series supports frequencies from 1 to 80 MHz with best-in-class jitter performance. The 'AI' designation typically refers to the industrial temperature grade and specific configuration options available through SiTime's configurator tools.

Oscillators Replacement Considerations

This device is designed as a pin-to-pin drop-in replacement for many legacy quartz, SAW, and overtone oscillators. When substituting, verify that the new MEMS oscillator's drive level and load capacitance requirements are compatible with the existing circuit design to ensure proper operation.