SI5338A-B01085-GM

Overview

The SI5338A-B01085-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 a core supply voltage of 1.8 V, 2.5 V, or 3.3 V and operates within a temperature range of -40 °C to +85 °C. Key electrical parameters include a maximum input frequency of 710 MHz and typical phase jitter of 0.7 ps RMS. It is housed in a compact 4 x 4 mm QFN-24 package.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four differential output drivers
• Low phase jitter of 0.7 ps RMS typical
• Flexible input reference supporting external crystals (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential inputs (5–710 MHz)
• Independent output voltage per driver: 1.5, 1.8, 2.5, or 3.3 V

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm availability and exact configuration. Ensure compatibility with I2C/SMBus interfaces for programming. Check thermal resistance specifications for PCB land pattern design to maintain operation within the recommended -40 °C to +85 °C ambient temperature range.

Selection Notes

Select this component when low-jitter, any-frequency synthesis is required for multiple outputs. Verify that the desired output formats (LVPECL, LVDS, HCSL, CMOS, etc.) align with the supported voltage levels. Confirm that the input reference frequency falls within the specified ranges for the chosen input type.

Part Context

This part belongs to the Si5338 family of programmable clock generators. It is designed to replace multiple crystal oscillators or function as a frequency translator. The device integrates a PLL and MultiSynth stages to generate precise clock signals from various input sources.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.