SIT3372AC-2B2-25NH35.437431

Oscillators Overview

The SiTime SIT3372AC-2B2-25NH35.437431 is a MEMS Voltage-Controlled Crystal Oscillator (VCXO) operating at a nominal frequency of 35.437431 MHz. It features LVDS output signaling and operates on a 2.5V supply voltage. The device provides a frequency stability of ±25 ppm and utilizes a 6-SMD, No Lead package with dimensions of 3.20mm x 2.50mm. It supports an absolute pull range of ±1545 ppm and functions within a temperature range of -20°C to +70°C.

Oscillators Feature Summary

• Integrates DualMEMS temperature sensing and TurboCompensation technology for resistance to thermal gradients, shock, and vibration.
• Includes multiple on-chip regulators to filter power supply noise, removing the need for external LDOs.
• Factory programmable for specific combinations of frequency, stability, voltage, and output signaling.

Oscillators Applications

• Telecommunications systems requiring low-jitter clocking
• Networking equipment needing precise frequency control
• Industrial applications operating in noisy environments

Oscillators Procurement Notes

Verify the exact suffix configuration against the manufacturer datasheet to ensure compatibility with required output formats and voltage levels. Confirm that the 6-SMD no-lead package aligns with PCB footprint specifications. Check for RoHS compliance status and reflow profile requirements during assembly planning.

Oscillators Selection Notes

Select this component when a differential LVDS output is required alongside VCXO functionality. Ensure the design accommodates the 2.5V supply constraint and the specific 35.437431 MHz frequency. Consider the ±25 ppm stability requirement against system jitter budgets and verify that the operating temperature range meets environmental conditions.

Oscillators Part Context

This part belongs to the SiT3372 Elite Platform series, designed for ultra-low jitter applications across 1 MHz to 220 MHz. It replaces traditional quartz oscillators by offering programmability and superior dynamic performance. The platform eliminates customization costs and lead times associated with custom-built quartz devices.

Oscillators Replacement Considerations

Direct substitutes include SIT3372AC-1B3-25NZ35.437431 (LVPECL output) and SIT3372AC-2E9-25NH35.437431 (exposed pad variant). Verify output signal type and package pinout differences before substitution.

Oscillators FAQ

Does this oscillator require an external LDO?

No, the SiT3372 integrates multiple on-chip regulators to filter power supply noise, eliminating the need for a dedicated external LDO.

What is the absolute pull range of this VCXO?

The device supports an absolute pull range of ±1545 ppm, allowing for significant frequency adjustment capabilities.