SI5338C-B05639-GM

Overview

The SI5338C-B05639-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 accepts inputs up to 710 MHz and generates outputs with 0 ppm precision. Key electrical parameters include a maximum input frequency of 710 MHz, a maximum output frequency of 710 MHz (LVDS/LVPECL), and a typical phase jitter of 0.7 ps RMS.

Feature Summary

• I2C-programmable synthesis with 0 ppm frequency accuracy across four independent outputs
• Supports multiple output formats: LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL
• Low phase jitter performance of 0.7 ps RMS typical
• Flexible input options including external crystals (8-30 MHz) and differential/CMOS signals up to 710 MHz

Applications

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

Procurement Notes

Verify the specific factory configuration code B05639 against the official Skyworks datasheet ordering information table to confirm the exact pinout and initial register settings. Confirm that the GMR suffix indicates tape-and-reel packaging suitable for automated surface-mount assembly processes.

Selection Notes

Select this component when zero ppm frequency accuracy is required for multiple asynchronous clocks. Ensure the target application supports the I2C programming interface and utilizes the 4x4 mm QFN-24 package constraints. Validate that the required output voltage levels (1.5 V to 3.3 V) match the available VDDO supplies in the design.

Part Context

This part belongs to the Si5338 family of low-jitter clock generators manufactured by Skyworks Solutions. The 'C' designation typically refers to a specific commercial temperature grade or variant within the broader Si5338 product line, while the alphanumeric suffix defines the pre-programmed frequency plan.

Replacement Considerations

Direct replacements must be sought from the Si5338 family with matching configuration codes. Verify compatibility with ClockBuilder Pro software for reprogramming if the fixed frequency plan differs from the target application requirements.

FAQ

["What is the maximum input frequency supported by the SI5338C-B05639-GM?","The device supports a maximum differential input frequency of 710 MHz."]

["Can the output drivers operate at different supply voltages?","Yes, each output driver has an independent supply pin (VDDO) that can be powered at 1.5 V, 1.8 V, 2.5 V, or 3.3 V."]

["What is the typical phase jitter performance of this device?","The typical random phase jitter is 0.7 ps RMS under standard test conditions."]