SI5338M-B05695-GM

Overview

The SI5338M-B05695-GM is a programmable quad clock generator from Skyworks Solutions, utilizing MultiSynth technology to synthesize any frequency on four independent output drivers. It supports differential and single-ended formats including LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL. The device operates with a 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 accepts flexible inputs such as external crystals (8–30 MHz), CMOS (up to 200 MHz), SSTL/HSTL (up to 350 MHz), or differential clocks (up to 710 MHz).

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis with zero ppm precision.
• Supports up to four differential outputs, eight single-ended outputs, or mixed configurations.
• Low phase jitter of 0.7 ps RMS typical; compliant with PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS.
• Programmable via I²C/SMBus interface with glitchless frequency adjustments in 1 ppm steps.

Applications

• PCIe Gen 1/2/3/4 systems
• Ethernet switch/router timing
• Processor and FPGA clocking
• Broadcast video/audio timing

Procurement Notes

Verify the specific factory-programmed configuration associated with the B05695 suffix against the system requirements. Confirm that the required input reference frequencies and output signal formats match the pre-defined settings stored in the device's non-volatile memory.

Selection Notes

Select this part when fixed, factory-programmed frequencies are preferred over runtime I²C programming. Ensure the application utilizes the specific output voltage levels (1.5, 1.8, 2.5, or 3.3 V) and signal formats configured for this variant. Validate that the package size fits the PCB land pattern.

Part Context

This component belongs to the Si5338 family of I²C-programmable clock generators. The 'M' designation indicates a custom factory-programmed version with specific frequencies and settings burned into NVM, distinguishing it from generic user-programmable variants like the SI5338A.

Replacement Considerations

Direct replacement requires verifying that the pre-programmed frequencies and output configurations of the substitute part match the original design exactly. Generic Si5338 models require reprogramming via I²C and may not be pin-compatible if the configuration differs significantly.