SIT3372AI-4E9-28NB173.370750

Oscillators Overview

The SiTime SIT3372AI-4E9-28NB173.370750 is a MEMS-based Voltage Controlled Oscillator (VCXO) operating at a nominal frequency of 173.37075 MHz. It utilizes the Elite Platform architecture to deliver ultra-low jitter performance suitable for high-speed data transmission interfaces. The device features an HCSL differential output and operates on a 2.8V supply voltage. It is housed in a compact 6-SMD, No Lead Exposed Pad package with dimensions of 3.20mm x 2.50mm. The unit supports an absolute pull range of ±120 ppm and maintains a frequency stability of ±25 ppm across the industrial temperature range of -40°C to +85°C.

Oscillators Feature Summary

• Utilizes silicon MEMS technology to replace legacy quartz oscillators, offering enhanced shock and vibration resistance.
• Provides ultra-low jitter performance engineered specifically for demanding high-speed serial communication applications.
• Features a fully programmable architecture allowing customization of frequency, output type, and packaging options.

Oscillators Applications

• High-speed serial transceivers requiring precise clocking
• Data communication equipment utilizing LVDS or HCSL interfaces
• Telecommunications infrastructure systems

Oscillators Procurement Notes

Verify that the specific ordering suffix matches the required output format and voltage specifications. Confirm the lead time availability as custom MEMS devices may have longer production cycles. Ensure the thermal pad connection requirements are met during PCB assembly to maintain electrical integrity and heat dissipation.

Oscillators Selection Notes

Select this model when an HCSL output is required at 173.37075 MHz with a 2.8V supply. Compare against other SiT3372 variants if different output standards like LVPECL or LVDS are needed. Consider the ±120 ppm pull range requirement versus standard VCXO capabilities to ensure system tuning margins are sufficient.

Oscillators Part Context

This component belongs to the SiT3372 Elite Platform series, which covers frequencies from 1 MHz to 220 MHz. The series is designed to provide deterministic performance and reliability improvements over traditional crystal oscillators. It represents a shift towards silicon-based timing solutions that offer greater design flexibility and robustness.

Oscillators Replacement Considerations

Direct replacements include other SiT3372 variants with matching frequencies but different outputs, such as SIT3372AI-4B2-25NG173.370750 for HCSL at 2.5V. Cross-reference with SiTime's selection tool for equivalent quartz parts if migrating from legacy designs, ensuring pinout compatibility is verified.