SI5338N-B05635-GM

Overview

The SI5338N-B05635-GM is a programmable quad clock generator from Skyworks Solutions. It synthesizes four independent output clocks with zero ppm frequency accuracy using MultiSynth technology. The device supports differential and single-ended outputs, including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats. Maximum input frequencies reach 710 MHz for differential inputs and 200 MHz for single-ended sources. Output frequencies range up to 710 MHz for differential drivers and 200 MHz for CMOS. It operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V, with typical current consumption of 45 mA.

Feature Summary

• MultiSynth technology enables any-frequency synthesis with 0 ppm precision across four independent outputs.
• Flexible output configurations support LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL signal formats.
• Low phase jitter performance, typically 0.7 ps RMS random jitter under standard operating conditions.
• Programmable via I2C/SMBus interface with glitchless frequency adjustment capabilities.

Applications

• PCIe Gen 1/2/3/4 common clock and SRNS compliant systems
• Ethernet switch and router timing
• Processor and FPGA clocking solutions
• Broadcast video and audio timing distribution

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pin assignments and factory programming parameters. Ensure the required I2C pull-up voltage levels match the system design, as compatibility adjustments may be necessary for voltages below 2.5 V.

Selection Notes

Select this component when multiple distinct clock frequencies are required from a single package. Confirm that the target output signal format (LVDS, LVPECL, etc.) and voltage levels are supported by the specific driver configuration. Validate that the input reference source matches the compatible frequency ranges specified in the electrical characteristics.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The family utilizes patented MultiSynth architecture to replace multiple discrete crystal oscillators. The device is housed in a compact 4x4 mm QFN-24 package suitable for space-constrained high-density PCB layouts.

Replacement Considerations

Direct replacements within the same family include other Si5338 variants such as SI5338Q-B-GMR or SI5338G-A-GM. Verify that the substitute part number supports the identical output count and signal formats required by the application before implementation.