SI5338N-B05554-GM

Overview

The SI5338N-B05554-GM is a programmable quad clock generator from Skyworks Solutions. It synthesizes four independent output clocks with 0 ppm precision using MultiSynth technology. The device supports differential and single-ended outputs, including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats. It operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V. Maximum input frequency reaches 710 MHz via differential inputs, while maximum output frequencies vary by format up to 710 MHz. Typical RMS jitter is 0.7 ps. Configuration is performed via an I2C/SMBus interface.

Feature Summary

• MultiSynth technology enables any-frequency synthesis with zero ppm accuracy across four independent outputs
• Flexible output drivers support LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL signal formats
• Low phase jitter performance with typical RMS values of 0.7 ps
• I2C/SMBus compatible serial programming interface for configuration

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pin assignments and functional configurations. Ensure compatibility with the required I2C bus voltage levels (1.71 V to 3.63 V) and check for moisture sensitivity handling requirements during storage and assembly.

Selection Notes

Select this component when low jitter and flexible output voltage levels are required. Verify that the desired output formats (LVPECL, LVDS, etc.) match the available driver capabilities. Confirm that the input reference frequency falls within the supported ranges for crystals, CMOS, or differential inputs before finalizing the design.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It is designed to replace multiple discrete crystal oscillators in complex digital systems. The device integrates a PLL and MultiSynth stages to provide precise frequency synthesis in a compact 4x4 mm QFN package.

Replacement Considerations

Consult the official datasheet for direct pin-compatible alternatives within the Si5338 series. Verify that substitute parts maintain the same output drive strengths and jitter specifications for the target application.