SI5341A-B04429-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5341A-B04429-GMR is a programmable clock generator from Skyworks Solutions, part of the Si5341 family. It features ten outputs with any-frequency capability up to 1.028 GHz and supports input frequencies up to 750 MHz. The device delivers ultra-low jitter performance of 90 fs RMS. It operates on a supply voltage range of 1.71 V to 3.47 V, consuming approximately 120 mA. Housed in a QFN-64 package, it functions within a temperature range of -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Ultra-low jitter generation with 90 fs RMS specification
• Ten independent outputs supporting any frequency below 1.028 GHz
• Flexible output logic levels including LVCMOS, LVPECL, LVDS, CML, and HCSL
• Integrated MultiSynth technology for precise clock synthesis

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-speed data communication systems requiring precise timing
• Telecommunications infrastructure equipment
• Enterprise networking switches and routers
• Test and measurement instrumentation

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix GMR indicates tape-and-reel packaging configuration against official Skyworks documentation. Confirm that the B04429 factory programming matches the required frequency plan. Check current lifecycle status as some variants may be restricted or discontinued. Ensure ESD handling procedures are followed during assembly due to moisture sensitivity classification.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when ten synchronized outputs are required with frequencies exceeding standard limits but staying under 1.028 GHz. Compare with SI5341B if lower maximum output frequency around 350 MHz suffices, potentially offering different power characteristics. Verify input reference clock compatibility within the 750 MHz limit. Ensure the QFN-64 thermal pad requirements align with the PCB design for adequate heat dissipation at operating temperatures.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5341 series of low-jitter clock generators. It utilizes MultiSynth technology to generate multiple clock signals from a single reference. The device integrates voltage-controlled oscillators and digital synthesizers to achieve high performance without external components. It serves as a central timing solution for complex digital systems requiring multiple clock domains.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other SI5341A variants with matching output counts and frequency ranges. Verify pinout compatibility with the QFN-64 package. Consider SI5341B models if lower frequency requirements allow. Ensure any substitute maintains the 90 fs jitter specification and supports the necessary output logic families.