SI5338J-B04982-GM

Overview

The SI5338J-B04982-GM is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes any frequency 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. Input frequencies range from 5 to 710 MHz. Core supply voltage operates between 1.71 V and 3.63 V. Typical phase jitter is 0.7 ps RMS. It features I2C/SMBus control, spread spectrum generation, and glitchless frequency adjustment.

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, HCSL, CMOS, SSTL, and HSTL formats with independent supply voltages.
• Features low phase jitter of 0.7 ps RMS typical, spread spectrum capability, and independent phase/frequency adjustments.

Applications

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

Procurement Notes

Verify the specific ordering suffix B04982 against the manufacturer's official documentation to confirm factory-programmed frequency and format configurations. Confirm package type and RoHS compliance status prior to procurement.

Selection Notes

Select this component for designs requiring multiple independent clock frequencies from a single IC. Ensure the required output voltage levels (1.5V, 1.8V, 2.5V, or 3.3V) match the load requirements. Verify that the input reference source matches the supported frequency ranges for the chosen input pin configuration.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces multiple discrete crystal oscillators in high-performance digital systems. The device integrates PLLs and output buffers into a compact 24-lead QFN package.

Replacement Considerations

Consult Skyworks Solutions for confirmed substitute part numbers within the Si5338 family. Verify electrical compatibility and pinout consistency 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 frequencies be adjusted without glitches?

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

What output signal formats are supported?

Supported formats include LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL.