SI5340B-B04455-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5340B-B04455-GM is a programmable clock generator from the Si5340 family, manufactured by Skyworks Solutions. It features four outputs capable of generating any frequency below 350 MHz with ultra-low jitter performance of 90 fs rms. The device operates on a supply voltage ranging from 1.71 V to 3.47 V and supports multiple output formats including CML, HCSL, LVCMOS, LVDS, and LVPECL. It is housed in a QFN-44 package and functions within an operating temperature range of -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using proprietary MultiSynth technology
• Delivers sub-100 fs rms phase jitter performance for high-speed data applications
• Supports flexible output voltage levels and formats such as LVPECL, LVDS, and CML

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-performance networking equipment requiring precise clock synthesis
• Telecommunications infrastructure utilizing multi-standard interfaces
• Data center servers and storage systems demanding low-jitter timing
• Test and measurement instruments requiring stable frequency generation

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix B04455 against official Skyworks documentation to confirm the exact frequency configuration and pinout compatibility. Check current availability status as custom part numbers may have limited distribution channels or require direct factory orders. Ensure the source document explicitly lists this part number to avoid confusion with generic Si5340B variants.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when designing systems that require four independent clock outputs with frequencies under 350 MHz. It is suitable for replacing multiple discrete oscillators and clock buffers. Consider the QFN-44 footprint and thermal requirements during PCB layout. Verify that the required output voltage standards match the supported CML, LVDS, or LVPECL options available through configuration.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5340 series of any-frequency, any-output clock generators. It utilizes a wide-band PLL combined with fractional synthesizer technology to provide versatile timing solutions. The device is designed to simplify clock tree architectures by integrating multiple clock sources into a single chip, reducing board space and component count.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements should be sought within the Si5340B family with matching output counts and frequency ranges. Generic Si5340 devices may not support the specific configuration encoded in the B04455 suffix. Verify electrical compatibility and pinout alignment before substitution.