SIT3372AI-4B9-30NH35.437431

Oscillators Overview

The SiTime SIT3372AI-4B9-30NH35.437431 is a MEMS Voltage-Controlled Crystal Oscillator (VCXO) operating at a nominal frequency of 35.437431 MHz. It features HCSL differential output signaling and requires a 3.0V supply voltage. The device utilizes DualMEMS temperature sensing and TurboCompensation technology for dynamic performance. Key electrical parameters include a frequency stability of ±50 ppm and an absolute pull range of ±1545 ppm. It operates within a temperature range of -40°C to 85°C, draws a maximum current of 84 mA, and is housed in a 6-SMD, No Lead package with dimensions of 7.00mm x 5.00mm.

Oscillators Feature Summary

• Integrates DualMEMS temperature sensing and TurboCompensation technology to provide resistance against airflow, thermal gradients, shock, and vibration.
• Includes multiple on-chip regulators to filter power supply noise, eliminating the need for dedicated external Low-Dropout (LDO) regulators.
• Factory programmable for specific combinations of frequency, stability, voltage, output signaling, and pull range to optimize clock configurations.

Oscillators Applications

• Telecommunications systems requiring precise timing signals
• Networking equipment needing low-jitter differential clocks
• Industrial applications operating in noisy or thermally variable environments

Oscillators Procurement Notes

Verify that the specific ordering suffix matches the required output type (HCSL), supply voltage (3.0V), and package dimensions. Confirm that the absolute pull range and frequency stability meet the design specifications. Ensure compatibility with the target application's thermal environment and power supply constraints before finalizing procurement.

Oscillators Selection Notes

Select this component when a differential HCSL output is required alongside a 3.0V supply. The wide absolute pull range supports significant frequency tuning needs. Consider the larger 7x5 mm package size compared to smaller variants if board space allows. This model is suitable for designs prioritizing dynamic performance and integrated power regulation over minimal footprint.

Oscillators Part Context

This part belongs to the SiT3372 Elite Platform series, which covers frequencies from 1 MHz to 220 MHz. The AI suffix indicates an extended industrial temperature range (-40°C to 85°C). The platform replaces traditional quartz oscillators by offering factory-programmable flexibility, reducing lead times and customization costs associated with custom-built quartz devices.

Oscillators Replacement Considerations

Direct replacements must match the 35.437431 MHz frequency, HCSL output, 3.0V supply, and 7x5mm package. Variants such as SIT3372AI-4E9-33NE35.437431 differ in voltage and package. Verify pinout and electrical characteristics against the original design requirements before substitution.