SI5338B-B05723-GMR

Overview

The SI5338B-B05723-GMR is a programmable quad clock generator from Skyworks Solutions, utilizing MultiSynth technology for independent frequency synthesis on four output drivers. It supports any frequency up to 710 MHz with zero ppm precision and features low phase jitter of 0.7 ps RMS typical. The device accepts various input references including differential clocks up to 710 MHz and single-ended CMOS/SSTL/HSTL inputs. Outputs are configurable for LVPECL, LVDS, CML, HCSL, CMOS, SSTL, or HSTL formats with independent supply voltages. It operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V within a 4x4 mm QFN-24 package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers with 0 ppm precision.
• Low phase jitter performance of 0.7 ps RMS typical, compliant with PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS standards.
• Flexible input reference options: external crystal (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), or differential (5–710 MHz).
• Independently configurable outputs support LVPECL/LVDS/CML (up to 710 MHz), HCSL (up to 250 MHz), and CMOS/SSTL/HSTL (up to 350 MHz).

Applications

• Ethernet switch/router timing
• PCIe Gen1/2/3/4 clocking
• Processor and FPGA clocking
• Broadcast video/audio timing
• Telecom line cards

Procurement Notes

Verify the specific ordering suffix B05723 against the manufacturer's current documentation to confirm factory-programmed frequencies and output configurations. Ensure compatibility with I2C programming tools such as ClockBuilder Pro for final system integration validation.

Selection Notes

Select this component when requiring four independent clock outputs with high precision and low jitter. Verify that the required output voltage levels (1.5 V, 1.8 V, 2.5 V, or 3.3 V) match the load requirements. Confirm input source compatibility, particularly if using differential inputs above 350 MHz which require specific PLL bandwidth settings.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'B' in the part number typically denotes a specific factory-programmed configuration variant within the series. The '-GMR' suffix indicates a tape-and-reel packaging format suitable for automated surface-mount assembly.

Replacement Considerations

Direct pin-to-pin replacements within the Si5338 family may exist but require verification of the specific programmed frequencies and output formats. Consult the official datasheet for equivalent part numbers with matching electrical characteristics and pin assignments.