SI5338A-B05859-GM

Overview

The SI5338A-B05859-GM is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes four independent output clocks with zero ppm frequency accuracy. The device supports differential and single-ended outputs, including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats. Maximum input frequency reaches 710 MHz via differential inputs. Output frequencies range from 0.16 to 710 MHz depending on the selected format. It operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V, consuming approximately 45 mA. The component features low phase jitter of 0.7 ps RMS typical and is housed in a 24-lead QFN package.

Feature Summary

• MultiSynth technology enables independent any-frequency synthesis on four output drivers with true zero ppm precision.
• Configurable output drivers support multiple signal formats: LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL.
• Low phase jitter performance of 0.7 ps RMS typical across all outputs.
• I2C/SMBus compatible interface for programming and 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/audio timing

Procurement Notes

Verify the specific factory-programmed NVM content associated with the B05859 suffix against the target design requirements. Confirm that the I2C address and register map match the system controller capabilities. Ensure the operating temperature range of -40 to +85 °C aligns with the environmental specifications of the final assembly.

Selection Notes

Select this model when fixed frequency generation with zero ppm accuracy is required without external crystal tuning. Verify that the desired output voltage levels (1.5 V, 1.8 V, 2.5 V, or 3.3 V) are supported by the available VDDOx pins. Check if the glitchless frequency increment/decrement feature is necessary for dynamic system adjustments.

Part Context

This component belongs to the Si5338 family of I2C-programmable clock generators. It replaces discrete crystal oscillators and frequency translators. The 'B' suffix indicates custom factory programming stored in non-volatile memory. The 'GM' suffix denotes the 24-lead QFN package type.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate other Si5338 variants based on matching output configurations and jitter specifications.