SIT3372AI-4E2-30NB148.350000

Oscillators Overview

The SiTime SIT3372AI-4E2-30NB148.350000 is a differential MEMS Voltage-Controlled Crystal Oscillator (VCXO) operating at a nominal frequency of 148.35 MHz. It utilizes HCSL output signaling and functions with a 3V supply voltage. The device features a frequency stability of ±25 ppm and an Absolute Pull Range (APR) of ±20 ppm. It operates within a temperature range of -40°C to +85°C and is housed in a 6-SMD, No Lead package with an exposed pad.

Oscillators Feature Summary

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

Oscillators Applications

• Telecommunications systems requiring low-jitter clock signals
• Networking equipment demanding stable differential oscillators
• Industrial applications operating in noisy or thermally variable environments

Oscillators Procurement Notes

Verify the complete part number against official SiTime documentation to ensure correct output format, voltage, and stability specifications. Confirm that the 6-SMD no-lead package with exposed pad matches your PCB footprint requirements. Check reflow profile guidelines for proper assembly. Ensure the HCSL output level is compatible with downstream receiver inputs. Validate the APR and stability parameters against system timing budgets before finalizing procurement.

Oscillators Selection Notes

Select this component when a differential VCXO with HCSL outputs is required for frequencies around 148 MHz. It is suitable for designs needing programmability to avoid custom quartz lead times. Choose this part if the application demands high immunity to mechanical stress and thermal changes. Verify that the 3V supply voltage aligns with the system power architecture. Ensure the ±20 ppm pull range meets the frequency tuning requirements of the target application.

Oscillators Part Context

The SIT3372 series represents SiTime’s ultra-low jitter differential MEMS VCXOs, covering a frequency range from 1 MHz to 220 MHz. This family replaces traditional quartz devices by offering factory programmability and superior dynamic performance. The AI suffix typically denotes specific industrial or extended grade variations within the product line, engineered for reliability in demanding conditions.

Oscillators Replacement Considerations

Direct substitutes include other SIT3372 variants with matching 148.35 MHz frequency, HCSL output, and 3V supply, such as SIT3372AI-4E2-30NB148.350000Y. Cross-reference pinout and package dimensions to ensure compatibility. Verify that alternative parts meet the same ±25 ppm stability and ±20 ppm APR specifications.