SI5338A-B07958-GM

Overview

The SI5338A-B07958-GM is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes four independent output clocks with zero ppm frequency accuracy. The device supports differential and single-ended outputs including LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL. Maximum output frequencies reach 710 MHz for differential formats and 200 MHz for CMOS. It operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V with typical current consumption of 45 mA. Jitter performance is characterized by 0.7 ps RMS random jitter. Configuration is managed via an I2C/SMBus interface.

Feature Summary

• MultiSynth technology enables independent any-frequency synthesis on four output drivers with true zero ppm accuracy.
• Supports flexible input references including external crystals (8-30 MHz), CMOS (5-200 MHz), and differential inputs up to 710 MHz.
• Features highly configurable output drivers supporting LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats.
• Includes independent phase adjustment (<20 ps steps) and glitchless frequency adjustments in 1 ppm steps.

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 applications

Procurement Notes

Verify the specific factory programming code B07958 against the official Skyworks ordering documentation to confirm the exact synthesized frequencies and configuration parameters. Ensure the QFN-24 package dimensions match the PCB land pattern requirements. Confirm RoHS compliance status through the manufacturer's latest release notes.

Selection Notes

Select this component when multiple independent clock frequencies are required from a single IC. Verify that the target output voltage levels (1.5 V, 1.8 V, 2.5 V, or 3.3 V) align with the load requirements. Ensure the input reference source matches the supported frequency ranges for crystal, CMOS, or differential inputs.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'A' suffix typically denotes the maximum output frequency capability within the series. The 'GM' suffix indicates the tape and reel packaging format for surface-mount assembly.

Replacement Considerations

Direct replacements within the Si5338 family include SI5338A-Bxxxxx-GM variants with different factory programming codes. Cross-family replacement requires verifying pin compatibility and electrical specifications against the Si5335 or Si5336 datasheets.