SI5341A-B04978-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5341A-B04978-GMR is a programmable clock generator from Skyworks Solutions, featuring ten outputs with frequencies up to 1.028 GHz and an input frequency of 750 MHz. It delivers ultra-low jitter of 90 fs within the QFN-64 package. The device operates on a supply voltage ranging from 1.71 V to 3.47 V, consuming approximately 120 mA. It supports multiple output logic levels including LVCMOS, LVPECL, LVDS, CML, and HCSL, functioning reliably between -40°C and +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Ultra-low jitter performance for high-speed data integrity
• Ten independent outputs supporting any-frequency configuration
• Flexible output drive options across multiple logic standards
• Integrated MultiSynth technology for precise clock synthesis

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-performance networking equipment requiring precise timing
• Telecommunications infrastructure base stations
• Data center server backplanes and storage arrays
• Test and measurement instrumentation systems

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix GMR indicates tape-and-reel packaging when sourcing. Confirm the exact factory programming code B04978 matches the required frequency plan, as this variant is pre-programmed. Check current availability status, as specific custom variants may have limited stock or restricted distribution channels compared to generic family members.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this part when ten distinct clock signals are required with minimal phase noise. Ensure the design accommodates the 1.028 GHz maximum output frequency limit. Verify that the system power budget aligns with the typical 120 mA consumption. Confirm compatibility with the available development tools like the Si5341-D-EVB for initial validation.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5341 family of Ultra-Low Jitter Clock Generators. It utilizes Skyworks' MultiSynth technology to provide flexible clocking solutions. The device is designed to replace discrete crystal oscillator combinations, reducing board space and improving overall system reliability in demanding digital environments.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other SI5341A variants with different factory codes if the frequency plan differs. Generic family members like SI5341B offer similar functionality but with lower maximum output frequencies. Always verify pinout compatibility and thermal requirements before substituting.