SIT9120AC-1C1-25S74.250000

Oscillators Overview

The SiTime SIT9120AC-1C1-25S74.250000 is a fixed-frequency MEMS oscillator operating at 74.25 MHz with LVPECL output signaling. It functions within a supply voltage range of 2.25 V to 2.75 V, typically centered at 2.5 V. The device exhibits a frequency stability of ±10 ppm and supports an industrial temperature range from -20°C to +70°C. Packaged in a compact 6-SMD, No Lead form factor measuring 5.0 mm by 3.2 mm, it delivers RMS phase jitter of 0.6 ps typical. This component integrates silicon resonator technology for high reliability and low power consumption compared to traditional quartz solutions.

Oscillators Feature Summary

• Utilizes silicon MEMS resonator technology for enhanced shock and vibration resistance
• Provides differential LVPECL output signaling for high-speed data transmission integrity
• Supports standby mode functionality for power management optimization

Oscillators Applications

• High-speed serial interface clock generation
• FPGA and ASIC timing reference sources
• Telecommunications equipment synchronization

Oscillators Procurement Notes

Verify the specific package variant against design requirements, as the SIT9120 family includes both 5032 and 7050 footprints. Confirm that the LVPECL output format matches the receiving logic input specifications. Ensure the ±10 ppm stability meets system timing budgets. Check availability status through authorized distributors, as lead times may vary based on production schedules and regional stock levels.

Oscillators Selection Notes

Select this model when differential LVPECL outputs are required for noise immunity in high-speed digital designs. The ±10 ppm stability suits applications demanding precise frequency accuracy over the industrial temperature range. Consider the 2.5 V supply requirement for compatibility with standard logic families. Evaluate the 6-SMD package size for PCB space constraints relative to larger 7050 variants.

Oscillators Part Context

The SIT9120 series represents SiTime's ultra-performance differential oscillators designed to replace traditional quartz crystals. These devices offer programmable frequencies between 25 MHz and 212.5 MHz. The AC suffix indicates commercial/industrial temperature grades, while the 1C1 coding specifies the particular voltage, stability, and package configuration for this 74.25 MHz variant.

Oscillators FAQ

Does this oscillator support single-ended outputs?

No, the SIT9120AC-1C1-25S74.250000 is configured specifically for LVPECL differential output signaling.

What is the typical RMS phase jitter performance?

The device achieves a typical RMS phase jitter of 0.6 ps across its operating frequency range.