SI5338A-B08772-GM

Overview

The SI5338A-B08772-GM is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes four independent output clocks with 0 ppm precision, supporting frequencies up to 710 MHz on differential outputs and 350 MHz on single-ended formats. The device 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 typical RMS jitter of 0.7 ps and an input frequency range extending to 710 MHz for differential sources. Configuration is managed via an I2C/SMBus interface.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with zero ppm accuracy.
• Supports diverse output formats including LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL.
• Features low phase jitter of 0.7 ps RMS typ and glitchless frequency adjustments in 1 ppm steps.
• Includes flexible spread spectrum generation with modulation rates from 33 to 63 kHz.

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 solutions
• Broadcast video/audio timing infrastructure

Procurement Notes

Verify the specific ordering suffix B08772 against the manufacturer's official documentation to confirm factory programming details. Ensure compatibility with the required I2C bus voltage levels (1.71 V to 3.63 V) and check for moisture sensitivity handling requirements during assembly.

Selection Notes

Select this component when designing systems requiring four independent clock signals with varying frequencies and voltage levels. Verify that the input reference source matches the supported formats, such as differential inputs up to 710 MHz or external crystals between 8 and 30 MHz. Confirm thermal management needs based on the 37 °C/W junction-to-ambient resistance.

Part Context

This part belongs to the Si5338 family of high-performance clock generators. It replaces multiple discrete crystal oscillators by providing flexible frequency synthesis in a compact 4 x 4 mm QFN package. The device supports operation across a wide temperature range of –40 to +85 °C.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Skyworks Solutions for direct cross-reference information regarding legacy replacements or pin-compatible alternatives.