SIT3372AC-4B2-33NC77.760000

Oscillators Overview

The SiTime SIT3372AC-4B2-33NC77.760000 is a MEMS Voltage-Controlled Crystal Oscillator (VCXO) operating at 77.76 MHz. It features HCSL output signaling and functions within a supply voltage range of 2.97 V to 3.63 V, typically centered at 3.3 V. The device exhibits a frequency stability of ±25 ppm and an absolute pull range of ±20 ppm. It operates reliably between -40°C and +85°C in a compact 6-SMD, No Lead package measuring 3.2 mm x 2.5 mm x 0.90 mm.

Oscillators Feature Summary

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

Oscillators Applications

• Telecommunications equipment requiring precise clock synchronization
• Networking infrastructure components
• Industrial applications operating in noisy environments

Oscillators Procurement Notes

Verify the exact suffix codes against the manufacturer's official datasheet to ensure compatibility with your system requirements. Confirm that the HCSL output format matches your receiver inputs. Check the absolute pull range specifications against your design margins. Ensure the operating temperature range aligns with your environmental conditions. Cross-reference the package dimensions with your PCB footprint constraints before finalizing procurement.

Oscillators Selection Notes

Select this component when low jitter and high dynamic performance are required in space-constrained designs. The integrated noise filtering simplifies power architecture by removing external LDO dependencies. Consider the factory-programmable nature to avoid custom quartz lead times. Verify that the HCSL output interface is compatible with downstream logic. Ensure the ±20 ppm pull range meets the system's frequency adjustment needs.

Oscillators Part Context

This part belongs to the SiT3372 Elite Platform series, designed for ultra-low jitter differential applications. It represents a shift from traditional quartz oscillators to silicon MEMS technology, offering greater configurability and resilience against mechanical stress. The series supports frequencies from 1 MHz to 220 MHz, catering to diverse timing requirements in modern electronics.

Oscillators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Direct replacement requires matching the MEMS VCXO specifications, including frequency, output type, and package dimensions. Consult SiTime or authorized distributors for equivalent configurations if this specific part number is unavailable.