SIT9121AI-2D1-25E30.720000

Oscillators Overview

The SiTime SIT9121AI-2D1-25E30.720000 is a programmable MEMS oscillator operating at 30.72 MHz with LVDS output format. It features ±20 ppm frequency stability and supports a supply voltage range of 2.25 V to 3.63 V, typically utilizing 2.5 V. The device is housed in a 6-pin QFN SMD package measuring 3.2 mm x 2.5 mm with a height of 0.75 mm. It operates within a temperature range of -40°C to +85°C and includes enable/disable functionality.

Oscillators Feature Summary

• Utilizes Silicon MEMS resonator technology for enhanced reliability compared to traditional quartz
• Provides differential LVDS output signals for high-speed data transmission applications
• Supports programmable frequency configuration via I2C interface
• Includes enable and disable control pin for power management optimization

Oscillators Applications

• High-speed serial communication interfaces requiring precise clocking
• Data acquisition systems needing stable timing references
• Industrial equipment with strict environmental temperature requirements
• Telecommunications infrastructure components

Oscillators Procurement Notes

Verify the specific ordering suffix matches the required frequency, output type, and package dimensions. Confirm that the supply voltage rating aligns with the target system design. Ensure the enable/disable feature is utilized correctly in the schematic. Check for any specific tape and reel packaging requirements for automated assembly processes.

Oscillators Selection Notes

Select this component when differential LVDS signaling is required for noise immunity. Consider the ±20 ppm stability specification against system jitter budgets. Evaluate the 6-pin QFN footprint against available PCB space constraints. Verify compatibility with the host controller's I2C interface for frequency programming.

Oscillators Part Context

This part belongs to the SiT9121 series of programmable MEMS oscillators from SiTime. The series offers various frequencies and output formats including LVPECL and LVDS. It replaces traditional crystal oscillators with silicon-based solutions for improved shock resistance and lower power consumption in compact designs.

Oscillators Replacement Considerations

Direct substitutes may include other SiTime SiT9121 variants with matching 30.72 MHz frequency and LVDS output. Cross-reference pinouts and electrical characteristics carefully. Ensure equivalent stability and operating temperature ranges are maintained for reliable operation.