SI5341A-B05742-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5341A-B05742-GM is a programmable clock generator from Skyworks Solutions, part of the Si5341 family. It features an ultra-low jitter architecture with 90 fs rms phase noise performance. The device supports up to 10 differential outputs with frequencies reaching 1.028 GHz and accepts input frequencies up to 750 MHz. It operates within a supply voltage range of 1.71 V to 3.47 V and functions reliably between -40°C and +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 for high-performance signal integrity
• Supports multiple output formats including LVDS, LVPECL, LVCMOS, CML, and HCSL
• Configurable via I2C/SPI interfaces or factory pre-programmed custom part numbers

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-speed data communication systems requiring precise clock synthesis
• Telecommunications infrastructure equipment
• Test and measurement instruments
• Industrial automation control systems

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix (e.g., B05742) against official Skyworks documentation to confirm the exact pre-programmed frequency configuration. Custom part numbers are factory-specific; generic SI5341A devices require separate programming. Confirm RoHS compliance and moisture sensitivity levels prior to assembly planning.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when designing systems requiring flexible frequency generation with minimal jitter. Ensure the required output count does not exceed ten channels. Verify that the target application's input source matches the supported ranges: external crystals (25–54 MHz), differential clocks (up to 750 MHz), or LVCMOS (up to 250 MHz).

Clock Generators, PLLs, Frequency Synthesizers Part Context

This device belongs to the Si5341 series, which integrates a wide-band PLL and fractional synthesizer into a single 64-pin QFN package. It replaces multiple discrete oscillators and clock buffers, simplifying the clock tree design. The 'A' variant typically denotes support for higher output frequencies compared to lower-tier models in the same family.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements must match the 64-QFN footprint and electrical specifications. Generic Si5341A units can function as substitutes if reprogrammed via ClockBuilderPro software to replicate the original frequency plan. Ensure compatible output drive strengths and voltage levels during cross-referencing.