SI5338B-B05723-GM

Overview

The SI5338B-B05723-GM is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes four independent clocks with zero ppm accuracy, supporting frequencies up to 710 MHz on differential outputs and lower limits for single-ended formats. The device features low phase jitter of 0.7 ps RMS typical, configurable output drivers (LVPECL, LVDS, HCSL, CMOS), and operates from a 1.8 V, 2.5 V, or 3.3 V core supply. It includes I2C/SMBus control, spread spectrum capabilities, and independent glitchless frequency/phase adjustments within a 4x4 mm QFN-24 package.

Feature Summary

• MultiSynth technology enables independent any-frequency synthesis on four outputs with true zero ppm precision.
• Low phase jitter performance of 0.7 ps RMS typical across differential output formats.
• Flexible input reference options including external crystals (8-30 MHz) and various digital inputs up to 710 MHz.
• Independent output voltage configuration per driver (1.5, 1.8, 2.5, or 3.3 V) with highly configurable signal formats.

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant timing
• Ethernet switch/router clocking
• Processor and FPGA clock generation
• Broadcast video/audio timing systems

Procurement Notes

Verify the specific ordering suffix B05723 against the manufacturer's current documentation to confirm factory-programmed frequency and format configurations. Ensure compatibility with I2C bus voltage levels if operating below 2.5 V by checking register settings. Confirm moisture sensitivity handling requirements during assembly.

Selection Notes

Select this component when requiring four independent clock signals with precise frequency accuracy and low jitter. Verify that the required output formats (LVPECL, LVDS, HCSL, etc.) fall within the specified frequency ranges for each driver. Ensure the input reference source matches the supported types (crystal, CMOS, differential) and frequency limits.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces multiple discrete crystal oscillators in complex digital systems. The 'B' series typically denotes specific factory-programmed configurations, while the '-GM' suffix indicates the QFN-24 package type.

Replacement Considerations

Direct pin-to-pin replacements within the same family require matching the programmed frequency and output format parameters. Verify that alternative Skyworks models support the same jitter specifications and output voltage requirements for the target application.