SI5338A-B05923-GM

Overview

The SI5338A-B05923-GM is an I2C-programmable quad clock generator from Skyworks Solutions. It synthesizes any frequency up to 710 MHz on four independent output drivers using MultiSynth technology, achieving zero ppm precision. The device operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V and supports flexible input references including differential clocks up to 710 MHz. Outputs support LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats with independent voltage levels. Key electrical parameters include a maximum output frequency of 710 MHz, typical phase jitter of 0.7 ps RMS, and a core supply current of 45 mA.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers with 0 ppm precision.
• Low phase jitter of 0.7 ps RMS typ, compliant with PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS standards.
• Flexible input reference options: external crystal (8-30 MHz), CMOS (5-200 MHz), SSTL/HSTL (5-350 MHz), and differential (5-710 MHz).
• Independent output voltage per driver (1.5, 1.8, 2.5, or 3.3 V) and glitchless frequency adjustments in 1 ppm steps.

Applications

• Ethernet switch/router
• PCIe Gen1/2/3/4
• Broadcast video/audio timing
• Processor and FPGA clocking
• MSAN/DSLAM/PON

Procurement Notes

Verify the specific ordering suffix B05923 against the manufacturer's latest documentation to confirm the exact pre-configured frequency plan and output format. Ensure the design accounts for the 24-QFN package thermal characteristics and moisture sensitivity level during assembly.

Selection Notes

Select this component when low jitter (<1 ps RMS) and high flexibility are required for multiple clock domains. It replaces discrete oscillators by supporting any frequency on all outputs. Verify that the required output signal formats (LVPECL, LVDS, etc.) and frequencies fall within the specified ranges for the Si5338A variant.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'A' designation typically indicates the highest performance tier within the series, supporting frequencies up to 710 MHz. The 'GM' suffix denotes the lead-free QFN-24 package.

Replacement Considerations

Direct pin-compatible replacements within the same family include other Si5338 variants with different frequency limits or output configurations, such as the Si5338C or Si5338Q. However, the pre-programmed configuration in the B05923 suffix is unique and cannot be directly swapped without reprogramming or custom ordering.