SI5340A-B04931-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5340A-B04931-GMR is a programmable clock generator from Skyworks Solutions, part of the Si5340 family. It features four outputs capable of generating any frequency below 1028 MHz with ultra-low jitter performance specified at 90 fs. The device operates within a supply voltage range of 1.71 V to 3.47 V and supports multiple output formats including CML, HCSL, LVCMOS, LVDS, and LVPECL. Packaged in a QFN-44 form factor for surface mount installation, it functions across an industrial temperature range of -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies up to 1028 MHz from any input frequency
• Ultra-low phase jitter performance of 90 fs rms
• Supports five distinct output voltage standards: CML, HCSL, LVCMOS, LVDS, and LVPECL
• Configurable via SPI serial interface using ClockBuilderPro software

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-speed data communication systems requiring precise clock synthesis
• Telecommunications infrastructure equipment
• Test and measurement instruments demanding low-jitter timing signals

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix B04931 matches the required frequency plan, as this code defines the unique configuration. Check current availability status as custom-programmed variants may have limited stock or longer lead times compared to standard inventory items.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when four independent clock outputs are required with frequencies exceeding 350 MHz but remaining under 1028 MHz. Ensure the design accommodates the QFN-44 package thermal requirements. Verify that the input source frequency falls within the supported range of up to 750 MHz for proper PLL operation and jitter attenuation.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5340 series, which utilizes MultiSynth fractional synthesizer technology. It serves as a versatile replacement for multiple discrete oscillators and clock buffers in complex clock tree architectures. The 'GMR' suffix indicates the unit is supplied in a reel format suitable for automated surface-mount assembly processes.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct pin-to-pin replacements include other SKUs within the Si5340A family such as SI5340A-D-GM or SI5340A-D05864-GMR, provided their pre-programmed frequency plans match the system requirements. Cross-referencing the internal configuration via ClockBuilderPro is necessary before substituting.