SI5340A-B04086-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5340A-B04086-GMR is a programmable clock generator from the Si5340 series, manufactured by Skyworks Solutions. It features four outputs capable of generating any frequency up to 1.028 GHz with ultra-low jitter of 90 fs rms. The device operates on a single supply voltage ranging from 1.71 V to 3.47 V and supports multiple output formats including LVDS, LVPECL, LVCMOS, CML, and HCSL. Packaged in a QFN-44 form factor, it functions as a versatile clock tree solution for high-performance digital systems.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using MultiSynth technology
• Ultra-low phase jitter performance of 90 fs rms
• Supports differential output frequencies from 100 Hz to 1028 MHz
• Configurable output formats: LVDS, LVPECL, LVCMOS, CML, and HCSL

Clock Generators, PLLs, Frequency Synthesizers Applications

• Clock tree generation replacing discrete oscillators and buffers
• Clocking for FPGAs, processors, and memory interfaces
• Ethernet switches and routers
• OTN framers, mappers, and processors
• Test equipment and instrumentation

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory configuration code B04086 against the official datasheet to ensure compatibility with required input/output frequencies. Confirm moisture sensitivity level (MSL) handling requirements during storage and assembly. Check for RoHS compliance status and verify the reel packaging quantity for surface-mount assembly processes.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a single device must replace multiple fixed-frequency oscillators and buffer ICs. Ensure the design requires an input frequency within the 10–750 MHz range or utilizes an external crystal between 25–54 MHz. Verify that the QFN-44 package dimensions fit the PCB layout constraints and that the thermal dissipation capabilities meet the system's power budget.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5340 family, which integrates a wide-band PLL and fractional synthesizer. Unlike the 10-output Si5341 variant, the Si5340 provides four outputs in a smaller 7x7 mm QFN package. The 'GMR' suffix indicates a tape-and-reel packaging format suitable for automated surface-mount production lines.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct pin-compatible replacements within the same family include other Si5340 variants with different factory configurations. For higher channel counts, the Si5341 series offers ten outputs but requires a larger QFN-64 package. Cross-model substitution requires verifying electrical parameter alignment and software configuration tool compatibility.