SI5338B-B09792-GM

Overview

The SI5338B-B09792-GM is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes any frequency up to 710 MHz on four independent outputs with zero ppm precision. The device supports differential and single-ended formats including LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL. It operates from a 1.8 V, 2.5 V, or 3.3 V core supply with a typical current of 45 mA. Key electrical parameters include a maximum input frequency of 710 MHz, output frequencies up to 710 MHz, and typical phase jitter of 0.7 ps RMS.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with 0 ppm accuracy.
• Supports flexible input references: external crystals (8-30 MHz), CMOS (5-200 MHz), SSTL/HSTL (5-350 MHz), and differential inputs (5-710 MHz).
• Configurable output drivers support LVPECL/LVDS/CML up to 710 MHz, HCSL up to 250 MHz, and CMOS/SSTL/HSTL up to 350 MHz.
• Features glitchless frequency adjustments via independent increment/decrement pins and independent phase adjustment with <20 ps steps.

Applications

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

Procurement Notes

Verify the specific B09792 factory code against the manufacturer's ordering guide to confirm the exact pre-programmed frequency and format configuration. Confirm package availability and moisture sensitivity level handling requirements during storage and assembly.

Selection Notes

Select this component when low-jitter (<0.7 ps RMS) synthesis is required for high-speed serial links like PCIe Gen 3/4. Ensure the target output voltage levels (1.5 V, 1.8 V, 2.5 V, or 3.3 V) match the load requirements. Use ClockBuilder Pro software for accurate register configuration and jitter analysis.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'B' suffix typically denotes a specific factory programming configuration, while 'GM' indicates the QFN-24 package. It replaces multiple discrete crystal oscillators in complex digital systems.

Replacement Considerations

Direct pin-to-pin replacements within the same family require identical pre-programmed configurations. Verify that alternative SKUs provide the same output frequencies and signal formats to ensure functional compatibility without redesign.

FAQ

What is the maximum input frequency supported by the SI5338?

The device supports a maximum differential input frequency of 710 MHz.

Can the output frequencies be adjusted dynamically?

Yes, the device supports independent frequency increment/decrement features enabling glitchless frequency adjustments in 1 ppm steps.

What output formats are available?

The outputs are configurable to support LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats.