SI5338A-B01343-GM

Overview

The SI5338A-B01343-GM is a high-performance, low-jitter clock generator from Skyworks Solutions. It utilizes MultiSynth technology to synthesize any frequency on four independent output drivers with zero ppm precision. The device supports input frequencies up to 710 MHz and generates outputs ranging from 0.16 MHz to 710 MHz depending on the format (LVPECL/LVDS/CML). It features a typical phase jitter of 0.7 ps RMS and operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V within an ambient temperature range of –40 °C to +85 °C.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four differential output drivers.
• Low phase jitter of 0.7 ps RMS typical for LVDS/HCSL/LVPECL/CML formats.
• Flexible input reference options including external crystals (8–30 MHz), CMOS, SSTL/HSTL, and differential inputs up to 710 MHz.
• Programmable via I2C/SMBus interface with support for glitchless frequency adjustments and spread spectrum.

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant systems
• Ethernet switch/router and 1 GbE/10 GbE interfaces
• Processor and FPGA clocking
• Broadcast video/audio timing

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and shipping configuration. Ensure compatibility with the required I2C bus voltage levels, as the device supports standard mode and fast mode operations across different supply voltages.

Selection Notes

Select this component when designing systems requiring precise, independent clock generation for multiple peripherals. Consider the output driver voltage requirements (1.5 V, 1.8 V, 2.5 V, or 3.3 V) and the specific signal format needed (LVPECL, LVDS, HCSL, etc.) for each channel. Use ClockBuilder Pro software for optimal configuration.

Part Context

This part belongs to the Si5338 family of I2C-programmable quad clock generators. It is designed to replace multiple discrete crystal oscillators in space-constrained applications. The device integrates a PLL and MultiSynth synthesizers to provide flexible clock distribution solutions for high-speed digital interfaces.

Replacement Considerations

Consult the official Skyworks replacement guide for verified substitute part numbers. Ensure that any alternative component matches the pinout, electrical specifications, and package dimensions (QFN-24) to maintain board compatibility.

FAQ

What is the maximum input frequency supported by the SI5338?

The device supports differential input frequencies up to 710 MHz.

Can the output frequencies be adjusted without glitches?

Yes, the device features an independent frequency increment/decrement capability that allows glitchless frequency adjustments in 1 ppm steps.

What is the typical phase jitter performance?

The typical phase jitter is 0.7 ps RMS when using LVDS, HCSL, LVPECL, or CML output formats with a low-noise differential input clock.