SI5338C-B04993-GM

Overview

The SI5338C-B04993-GM is a programmable quad clock generator from Skyworks Solutions. It utilizes MultiSynth technology to synthesize any frequency on four independent output drivers with zero ppm precision. The device supports flexible input references, including differential inputs up to 710 MHz and single-ended CMOS inputs up to 200 MHz. Outputs are configurable for LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats. Key electrical parameters include a core supply voltage range of 1.71 V to 3.63 V, a typical operating current of 45 mA, and a phase jitter specification of 0.7 ps RMS. It operates within an ambient temperature range of -40 °C to +85 °C.

Feature Summary

• Four independent output drivers capable of synthesizing any frequency with 0 ppm accuracy
• Low phase jitter of 0.7 ps RMS typical value
• Flexible input support: external crystal (8-30 MHz), CMOS (5-200 MHz), SSTL/HSTL (5-350 MHz), and differential (5-710 MHz)
• Configurable output formats including LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL

Applications

• PCIe Gen 1/2/3/4 common clock and SRNS compliant systems
• Ethernet switch and router timing
• Processor and FPGA clocking
• Broadcast video/audio timing
• Telecom line cards and MSAN/DSLAM/PON equipment

Procurement Notes

Verify the specific configuration code B04993 against the manufacturer's ordering guide to ensure correct factory programming. Confirm that the QFN-24 package and I2C interface requirements match the target PCB design. Check for RoHS compliance status and moisture sensitivity level before assembly planning.

Selection Notes

Select this component when multiple independent clock frequencies are required from a single source. Ensure the input reference signal matches the supported frequency ranges for the chosen format. Verify that the output driver supply voltages align with the load requirements for LVPECL, LVDS, or CMOS interfaces.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'C' suffix typically denotes a specific frequency configuration or output capability variant within the series. The '-GM' suffix indicates the 24-lead QFN package and lead-free composition.

Replacement Considerations

Direct pin-to-pin replacements within the same family may include other Si5338 variants with different factory configurations. Verify that alternative part numbers support the same input/output frequency combinations and electrical specifications.