SI5338L-B06238-GM

Overview

The SI5338L-B06238-GM is a programmable clock generator from the Si5338 family, manufactured by Skyworks Solutions. It utilizes MultiSynth technology to synthesize any frequency on four independent output drivers with zero ppm precision. The device supports differential and single-ended outputs including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats. It operates from 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.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four differential output drivers
• Low phase jitter of 0.7 ps RMS typical
• High precision synthesis allows true zero ppm frequency accuracy on all outputs
• Flexible input reference supporting external crystals (8-30 MHz), CMOS (5-200 MHz), SSTL/HSTL (5-350 MHz), and differential inputs (5-710 MHz)

Applications

• Ethernet switch/router
• PCIe Gen1/2/3/4
• Broadcast video/audio timing
• Processor and FPGA clocking

Procurement Notes

Verify the specific factory-programmed configuration associated with the B06238 suffix against the system requirements. Confirm that the QFN-24 package dimensions and thermal characteristics meet the PCB layout constraints. Ensure the I2C pull-up voltage levels are compatible with the controller logic.

Selection Notes

Select this component when multiple distinct clock frequencies are required from a single IC. Verify that the desired output formats (LVPECL, LVDS, etc.) and frequencies fall within the supported ranges for each driver. Check if the flexible input reference options align with available system oscillators.

Part Context

This part belongs to the Si5338 series of I2C-programmable quad clock generators. The 'L' in the part number typically denotes specific factory programming or pin control variations compared to standard variants. The '-GM' suffix indicates the tape and reel packaging format.

FAQ

What is the maximum output frequency supported?

The maximum output frequency depends on the output format: up to 710 MHz for LVPECL/LVDS/CML, 350 MHz for SSTL/HSTL, and 250 MHz for HCSL.

Can the output drivers operate at different voltages?

Yes, each output driver has an independent supply pin (VDDOx) that can be powered at 1.5 V, 1.8 V, 2.5 V, or 3.3 V.

Is spread spectrum modulation configurable?

Yes, highly configurable spread spectrum is supported on any output, allowing frequency deviation from 0.5% to 5.0% and modulation rates from 33 to 63 kHz.