SI5338M-B05844-GM

Overview

The SI5338M-B05844-GM is a programmable clock generator from Skyworks Solutions, utilizing MultiSynth technology to synthesize any frequency on four output drivers. It supports differential and single-ended outputs with frequencies up to 200 MHz. The device operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V and features low phase jitter of 0.7 ps RMS typical. It includes I2C/SMBus programming capabilities and is housed in a compact 4x4 mm QFN-24 package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers
• Low phase jitter of 0.7 ps RMS typical
• Supports LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL output formats
• I2C/SMBus compatible interface for configuration

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant
• Ethernet switch/router
• Processor and FPGA clocking
• Broadcast video/audio timing

Procurement Notes

Verify the specific factory-programmed NVM content associated with the B05844 suffix, as this determines the exact output frequencies and configurations. Confirm availability status through authorized distributors, as custom programmed parts may have limited stock or lead times compared to standard variants.

Selection Notes

Select this part when fixed-frequency oscillators need replacement with a flexible, low-jitter solution. Ensure the required output frequencies fall within the 200 MHz limit for the 'M' variant. Verify that the input reference source matches the supported formats (crystal, CMOS, or differential).

Part Context

This component belongs to the Si5338 family of I2C-programmable clock generators. The 'M' designation typically indicates a maximum output frequency of 200 MHz, distinguishing it from higher-speed variants like the 'A' or 'B' models which support up to 710 MHz or 350 MHz respectively.

Replacement Considerations

Direct pin-to-pin replacements within the same package are available in the Si5338 family, such as SI5338A or SI5338B series devices, provided the frequency requirements are met. Ensure the replacement part supports the necessary output voltage levels and jitter specifications.