SI5338M-B05142-GM

Overview

The SI5338M-B05142-GM is a programmable quad clock generator utilizing MultiSynth technology to synthesize any frequency on four independent output drivers. It supports differential and single-ended formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. The device operates from a 1.8 V, 2.5 V, or 3.3 V core supply with a typical current of 45 mA. It features low phase jitter of 0.7 ps RMS typ, zero ppm frequency accuracy, and configurable spread spectrum modulation. The component is housed in a 4 x 4 mm QFN-24 package.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four output drivers with 0 ppm precision.
• Supports flexible input references: external crystals (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential inputs (5–710 MHz).
• Highly-configurable outputs support LVPECL/LVDS up to 710 MHz, HCSL up to 250 MHz, and CMOS/SSTL/HSTL up to 350 MHz.
• Features independent glitchless frequency adjustments in 1 ppm steps and phase adjustment with <20 ps accuracy.

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 and MSAN/DSLAM/PON applications.

Procurement Notes

Verify the specific factory-programmed NVM configuration associated with the B05142 suffix against the target design requirements. Confirm that the I2C programming environment matches the intended deployment, as this part is pre-configured for specific frequencies and output formats.

Selection Notes

Select this model when fixed, factory-programmed frequencies are preferred over field reconfiguration. Ensure the required output voltage levels (1.5, 1.8, 2.5, or 3.3 V) match the load specifications. Verify that the input reference type (crystal, CMOS, or differential) aligns with the available system clock source.

Part Context

This component belongs to the Si5338 family of I2C-programmable clock generators. The 'M' designation typically indicates a specific factory-programmed variant within the series, distinct from user-programmable versions like the Si5338A or Si5338D. It shares the same physical footprint and electrical characteristics as other Si5338 variants.

Replacement Considerations

Direct replacements must be sought from the Si5338 family with matching factory-programmed parameters. Generic Si5338 models require reprogramming via I2C and may not offer identical out-of-the-box performance without software configuration.