SI5338N-B05866-GMR

Overview

The SI5338N-B05866-GMR 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. It operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V, with individual output drivers configurable for 1.5 V, 1.8 V, 2.5 V, or 3.3 V. Key electrical parameters include a maximum input frequency of 710 MHz, a typical RMS jitter of 0.7 ps, and a typical operating current of 45 mA.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four output drivers with 0 ppm precision.
• Flexible input reference options: external crystal (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), or differential (5–710 MHz).
• Independent output voltage per driver: 1.5, 1.8, 2.5, or 3.3 V.
• Glitchless frequency adjustments in 1 ppm steps and independent phase adjustment with <20 ps accuracy.

Applications

• Ethernet switch/router
• PCIe Gen1/2/3/4
• Processor and FPGA clocking
• Telecom line cards

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout configuration and factory programming settings. Ensure compatibility with I2C/SMBus interface requirements and check for moisture sensitivity handling instructions during storage and assembly.

Selection Notes

Select this component when low jitter (<1 ps RMS) and high-precision frequency synthesis are required. Confirm that the target application supports the available output formats (LVPECL, LVDS, HCSL, etc.) and voltage levels. Verify that the input clock source matches one of the supported reference types within the specified frequency ranges.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It is designed to replace multiple discrete oscillators by providing four independent clock outputs from a single reference source. The device integrates a PLL and MultiSynth dividers to achieve flexible frequency generation in a compact 4x4 mm QFN package.

Replacement Considerations

Direct replacements must be sought within the Si5338 family or compatible Skyworks clock generators. Verify that alternative parts support the same number of outputs, input frequency range, and output format configurations. Check for identical package dimensions and pin assignments to ensure mechanical compatibility.