SI5338N-B05026-GMR

Overview

The SI5338N-B05026-GMR is a programmable quad clock generator from Skyworks Solutions. It synthesizes four independent output clocks with 0 ppm precision using MultiSynth technology. The device supports differential and single-ended outputs, including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats. Maximum input frequency reaches 710 MHz via differential inputs, while outputs support up to 710 MHz for LVDS/LVPECL/CML and 200 MHz for CMOS. Core supply voltage ranges from 1.71 V to 3.63 V (1.8/2.5/3.3 V nominal), with typical operating current of 45 mA. Phase jitter is typically 0.7 ps RMS.

Feature Summary

• I2C-programmable synthesis with 0 ppm frequency accuracy on all four outputs
• Flexible output drivers supporting LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL
• Low phase jitter performance of 0.7 ps RMS typical
• Independent output voltage selection per driver: 1.5, 1.8, 2.5, or 3.3 V

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout configuration and factory programming settings. Ensure I2C pull-up voltages are compatible with the selected core supply voltage. Confirm package type matches the 24-lead QFN footprint requirements.

Selection Notes

Select this component when multiple independent clock frequencies with low jitter are required in a compact form factor. Verify that the desired output signal formats (LVDS, LVPECL, etc.) align with the available driver configurations. Check input reference frequency compatibility, as differential inputs support up to 710 MHz while single-ended inputs are limited to 200 MHz.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The family utilizes patented MultiSynth technology to replace multiple crystal oscillators. Variants within the series differ primarily by factory-programmed frequency tables and output enable configurations, housed in a standard 4x4 mm QFN package.

Replacement Considerations

Direct replacements within the Si5338 family require identical factory programming parameters. Verify that alternative SKUs support the same output drive strengths and voltage levels. Cross-referencing with other Skyworks clock synthesizers may require significant circuit redesign due to differing pinouts and control interfaces.