SI5338M-B05719-GM

Overview

The SI5338M-B05719-GM 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 formats including LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL. 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. It accepts flexible input references ranging from external crystals (8–30 MHz) to differential clocks up to 710 MHz. Configuration is managed via an I²C/SMBus interface.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four output drivers with 0 ppm precision.
• Supports highly configurable output drivers for up to four differential or eight single-ended clocks.
• Low phase jitter performance of 0.7 ps RMS typical.
• Flexible input reference options including external crystal, CMOS, SSTL/HSTL, and differential inputs.

Applications

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

Procurement Notes

Verify the specific factory-programmed configuration associated with the B05719 suffix against system requirements using ClockBuilder Pro software. Confirm that the QFN-24 package dimensions and thermal characteristics align with the PCB land pattern specifications provided in the datasheet.

Selection Notes

Select this component when multiple independent clock frequencies are required from a single IC. Ensure the target output voltage levels (1.5 V, 1.8 V, 2.5 V, or 3.3 V) match the load requirements. Verify that the input source frequency falls within the supported ranges for the chosen output format.

Part Context

This part belongs to the Si5338 family of I²C-programmable clock generators. The 'B' suffix indicates a custom factory-programmed NVM configuration, while 'GM' denotes the 24-lead QFN package. It replaces discrete oscillators in high-performance timing applications.

Replacement Considerations

Direct pin-to-pin replacements within the same family include other Si5338 variants with different NVM configurations (e.g., SI5338N series). Verify that alternative parts support the required output frequencies and formats before substitution.

FAQ

What is the maximum input frequency supported by the Si5338?

The device supports differential input frequencies up to 710 MHz.

Can the output voltage levels be configured independently?

Yes, each output driver can be independently configured to support 1.5 V, 1.8 V, 2.5 V, or 3.3 V supply voltages.

How is the device programmed?

The Si5338 is programmed via an I²C/SMBus-compatible serial interface, typically using Skyworks' ClockBuilder Pro software.