SI5338C-B10104-GM

Overview

The SI5338C-B10104-GM is an I2C-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 external crystals (8–30 MHz), CMOS (up to 200 MHz), and differential inputs (up to 710 MHz). Outputs are configurable for various formats such as LVPECL, LVDS, HCSL, and CMOS, with independent voltage levels of 1.5, 1.8, 2.5, or 3.3 V. Key electrical parameters include a core supply voltage range of 1.71 V to 3.63 V, typical operating current of 45 mA, and low phase jitter of 0.7 ps RMS.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers with true zero ppm accuracy.
• Flexible input reference options support external crystals (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential inputs (5–710 MHz).
• Highly configurable output drivers allow up to four differential outputs, eight single-ended outputs, or combinations thereof, supporting formats like LVPECL, LVDS, HCSL, and CMOS.
• Low phase jitter performance of 0.7 ps RMS typ, compliant with PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS standards.

Applications

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

Procurement Notes

Verify the specific ordering suffix B10104 against the manufacturer's official documentation to confirm factory programming settings. Ensure compatibility with I2C/SMBus interface requirements and check for moisture sensitivity handling during storage and assembly.

Selection Notes

Select this component when designing systems requiring multiple independent clock frequencies from a single IC. Consider the required output signal formats (LVPECL, LVDS, etc.) and voltage levels to ensure driver configuration matches the load. Verify that the input reference source aligns with the supported frequency ranges for crystal or external clock inputs.

Part Context

The SI5338 series belongs to Skyworks' MultiSynth family of programmable clock generators. This specific model is housed in a compact 4x4 mm 24-lead QFN package. It serves as a replacement for multiple discrete crystal oscillators, reducing board space and simplifying design complexity by integrating synthesis and buffering capabilities.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative Skyworks Si533x variants based on pinout compatibility and specific frequency/jitter requirements.