SI5338D-B09539-GMR

Overview

The SI5338D-B09539-GMR 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 outputs with frequencies up to 710 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. Configuration is performed via an I²C/SMBus interface, allowing for flexible input references including crystals, CMOS, and differential signals.

Feature Summary

• MultiSynth™ technology enables zero ppm precision frequency synthesis on four independent outputs.
• Supports diverse output formats: LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL.
• Flexible input options include external crystals (8–30 MHz), CMOS (5–200 MHz), and differential inputs (up to 710 MHz).
• Features glitchless frequency adjustments in 1 ppm steps and independent phase adjustment with <20 ps accuracy.

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant systems.
• Ethernet switch/router and 1 GbE/10 GbE networking equipment.
• Processor and FPGA clocking solutions.
• Telecom line cards and MSAN/DSLAM/PON infrastructure.

Procurement Notes

Verify the specific ordering suffix B09539 against the manufacturer's current documentation to confirm factory-programmed settings. Ensure compatibility with the required I²C bus voltage levels, noting that pull-up voltages below 2.5 V require specific register configuration. Confirm package availability and moisture sensitivity handling procedures prior to assembly.

Selection Notes

Select this component when independent frequency synthesis across four outputs is required with high precision. Evaluate the output driver requirements to ensure support for the necessary signal formats such as LVDS or HCSL. Consider the input reference type, as the device accommodates various sources including differential clocks up to 710 MHz. Verify thermal performance within the –40 to +85 °C operating range.

Part Context

This part belongs to the Si5338 family of I²C-programmable clock generators. The family shares common architectural features like MultiSynth technology and QFN-24 packaging but varies by pre-programmed frequency sets and output configurations defined by the ordering suffix. The SI5338D variant represents a specific factory-configured instance within this broader product line.

Replacement Considerations

Direct replacements within the Si5338 family must match the specific frequency programming and output format requirements. Generic Si5338 devices may not share the same pre-programmed parameters. Verify pinout compatibility and electrical specifications before substituting with other models in the series.