SI5338C-B04323-GM

Overview

The SI5338C-B04323-GM is a programmable clock generator from Skyworks Solutions, utilizing MultiSynth technology to synthesize any frequency on four independent output drivers. It supports differential and single-ended outputs with frequencies up to 710 MHz for LVDS/LVPECL/CML formats, 350 MHz for SSTL/HSTL, and 200 MHz for CMOS. The device operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V, with independently configurable output voltages. It features low phase jitter (0.7 ps RMS typ), zero ppm precision, and I2C/SMBus programming via ClockBuilder Pro software.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four output drivers with 0 ppm precision.
• Supports flexible input references including external crystals (8-30 MHz), CMOS (5-200 MHz), and differential inputs (up to 710 MHz).
• Configurable output drivers support LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats with independent voltage levels (1.5, 1.8, 2.5, or 3.3 V).
• Features glitchless frequency adjustments in 1 ppm steps and independent 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
• Broadcast video/audio timing
• Telecom line cards and Fibre Channel/SAN

Procurement Notes

Verify the specific suffix 'GM' indicates tray packaging by consulting the official Skyworks ordering information section. Confirm that the internal code 'B04323' matches the required frequency plan and output configuration for the target application. Ensure compatibility with the I2C bus voltage levels if operating below 2.5 V.

Selection Notes

Select this component when multiple independent clock frequencies are required from a single package. Ensure the input reference source matches the supported formats (crystal, CMOS, or differential). Verify that the required output signal formats (LVDS, LVPECL, etc.) and frequencies fall within the specified limits for each driver. Consider the thermal resistance of the 24-QFN package for heat dissipation.

Part Context

The SI5338 series replaces discrete crystal oscillators and frequency translators. The 'C' variant typically denotes specific performance or feature sets within the family. The part is designed for space-constrained applications requiring high-performance clock distribution in a 4x4 mm QFN package.

Replacement Considerations

Direct pin-to-pin replacements within the Si5338 family may include other variants like SI5338Q or SI5338G, but these often differ in output configurations or jitter specifications. Verify that any substitute supports the same number of outputs and compatible signal formats. Consult the datasheet's ordering information for exact cross-references.