SI5338Q-B05389-GMR

Application Specific Clock/Timing Overview

The SI5338Q-B05389-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 features low phase jitter of 0.7 ps RMS typical, zero ppm frequency accuracy, and configurable spread spectrum modulation. It operates from a single core supply of 1.8, 2.5, or 3.3 V and is programmed via an I2C/SMBus interface.

Application Specific Clock/Timing Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with 0 ppm precision.
• Low phase jitter of 0.7 ps RMS typical, compliant with PCIe Gen 1/2/3/4 Common Clock standards.
• Highly-configurable output drivers supporting LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats.
• Independent glitchless frequency adjustments in 1 ppm steps and phase adjustment with <20 ps accuracy.

Application Specific Clock/Timing Applications

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

Application Specific Clock/Timing Procurement Notes

Verify the specific ordering suffix B05389 against the manufacturer's official documentation to confirm factory-programmed parameters. Ensure compatibility with the required input reference frequency and output signal formats before procurement.

Application Specific Clock/Timing Selection Notes

Select this component for designs requiring flexible clock synthesis with low jitter. Confirm that the required output voltage levels (1.5, 1.8, 2.5, or 3.3 V) match the load requirements. Verify that the input source (crystal, CMOS, or differential) falls within the supported frequency ranges specified in the datasheet.

Application Specific Clock/Timing Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It is designed to replace multiple discrete crystal oscillators in high-performance digital systems. The QFN-24 package provides a compact footprint suitable for space-constrained PCB layouts.

Application Specific Clock/Timing Replacement Considerations

Direct replacements must be sought from the Si5338 family. Verify that alternative parts support the same number of outputs, maximum frequency, and jitter specifications. Check if the replacement supports the required output formats and programming interface.