SIT9120AC-2D2-33E155.520000

Oscillators Overview

The SIT9120AC-2D2-33E155.520000 is a standard MEMS clock oscillator manufactured by SiTime. It operates at a frequency of 155.52 MHz with a frequency stability of 25 ppm. The device supports an LVDS output format and requires a supply voltage ranging from 2.97 V to 3.63 V, typically centered at 3.3 V. It features an enable/disable control function and is housed in a compact 5 mm x 3.2 mm surface-mount package. The component is designed for industrial temperature ranges, functioning reliably between -20°C and +70°C.

Oscillators Feature Summary

• Utilizes silicon MEMS technology to replace traditional quartz oscillators
• Provides differential LVDS output signaling for high-speed data transmission
• Includes active enable and disable control functionality
• Offers robust performance within extended industrial temperature limits

Oscillators Applications

• High-speed serial communication interfaces
• Data acquisition systems requiring precise timing
• Industrial automation controllers
• Network infrastructure equipment

Oscillators Procurement Notes

Verify the specific suffix codes against official SiTime documentation to ensure correct voltage, output type, and tolerance specifications. Confirm that the ordering part number matches the required frequency and package dimensions for your PCB layout. Check availability status through authorized distributors as stock levels may vary. Ensure the selected variant meets the thermal requirements of your specific application environment before finalizing procurement.

Oscillators Selection Notes

Select this model when a 155.52 MHz differential signal is required with moderate stability. The LVDS output suits applications needing noise immunity over longer traces. Verify that the 3.3V supply aligns with your system power rails. Consider the 25 ppm stability sufficient for most standard digital interfaces. Ensure the 5x3.2mm footprint fits within your board space constraints and thermal management plan.

Oscillators Part Context

This component belongs to the SiT9120 family of standard frequency differential oscillators. The series covers various frequencies from 25MHz to 212.5MHz. It represents SiTime's solution for replacing quartz crystals in cost-sensitive and size-constrained designs. The AC suffix indicates commercial/industrial grade variants. The 2D2 code specifies the pinout and electrical characteristics for this specific configuration.

Oscillators Replacement Considerations

Direct replacements must match the 155.52 MHz frequency, LVDS output, and 3.3V supply. Verify pin compatibility for the 6-SMD no-lead package. Cross-reference with other SiT9120 variants if different tolerances are needed. Ensure substitute parts support the same -20°C to +70°C operating range. Check datasheets for any differences in enable logic or drive strength.