SIT3372AI-4B9-25NU77.760000

Oscillators Overview

The SiTime SIT3372AI-4B9-25NU77.760000 is a MEMS Voltage-Controlled Crystal Oscillator (VCXO) operating at a nominal frequency of 77.76 MHz. It features an HCSL output format and operates on a 3.3V supply voltage. The device provides a frequency stability of ±25 ppm and supports an absolute pull range of ±20 ppm. It is housed in a compact 6-SMD, No Lead package with dimensions of 3.2 mm x 2.5 mm. The component is rated for an industrial temperature range from -40°C to +85°C.

Oscillators Feature Summary

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

Oscillators Applications

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

Oscillators Procurement Notes

Verify the exact ordering suffix against the manufacturer's official datasheet to ensure correct output format and voltage specifications. Confirm that the selected variant matches the required HCSL signaling and 3.3V supply requirements for the target application design.

Oscillators Selection Notes

Select this component when low-jitter differential clocking is required in space-constrained designs. The integrated regulation simplifies PCB layout by removing external filtering components. Ensure the system environment falls within the specified -40°C to +85°C operational range.

Oscillators Part Context

This part belongs to the SiT3372 Elite Platform series, designed for ultra-low jitter applications across a 1 MHz to 220 MHz range. The platform replaces traditional quartz devices, offering programmability to optimize clock configurations without custom manufacturing lead times.

Oscillators Replacement Considerations

Direct pin-to-pin replacements are limited due to SiTime's unique MEMS architecture and factory programming. Evaluate other SiT3372 variants with matching frequency and package size, or consider generic MEMS VCXOs only if electrical parameters and form factor align precisely.

Oscillators FAQ

Does this oscillator require an external Low Dropout Regulator (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 maximum operating temperature for this model?

The maximum operating temperature for the SIT3372AI-4B9-25NU77.760000 is +85°C.