SI5338A-B04519-GM

Overview

The SI5338A-B04519-GM is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes any frequency up to 710 MHz on four independent output drivers with zero ppm precision. The device supports flexible input references including external crystals (8–30 MHz), CMOS, SSTL/HSTL, and differential inputs up to 710 MHz. Outputs are configurable for LVPECL, LVDS, CML, HCSL, CMOS, SSTL, or HSTL formats. Key electrical parameters include a core supply voltage of 1.8 V, 2.5 V, or 3.3 V, a typical operating current of 45 mA, and a typical phase jitter of 0.7 ps RMS. It operates within a temperature range of –40 °C to +85 °C in a 24-lead QFN package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers with true zero ppm accuracy.
• Low phase jitter performance of 0.7 ps RMS typ, compliant with PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS standards.
• Highly-configurable output drivers supporting LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL signal formats.
• Flexible input reference options: External crystal (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and Differential (5–710 MHz).

Applications

• Ethernet switch/router
• PCIe Gen1/2/3/4 systems
• Broadcast video/audio timing
• Processor and FPGA clocking
• MSAN/DSLAM/PON infrastructure

Procurement Notes

Verify the specific factory-programmed configuration associated with the B04519 suffix against the target design requirements. Confirm that the I2C/SMBus interface compatibility matches the system controller. Ensure the 24-QFN thermal characteristics and PCB land pattern recommendations are adhered to during assembly.

Selection Notes

Select this component when multiple independent clock frequencies are required from a single source. Verify that the desired output frequencies fall within the supported ranges for the chosen output format (e.g., LVDS up to 710 MHz, CMOS up to 200 MHz). Check if the input reference type (crystal vs. buffered clock) aligns with the available system clock sources.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'B' suffix indicates a custom factory-programmed configuration stored in non-volatile memory. The 'GM' suffix denotes the 24-lead QFN package variant. Other variants in the series may differ by maximum output frequency or specific pre-programmed settings.

Replacement Considerations

Direct replacements must be from the Si5338 family with identical pinout and package. Verify that the replacement part number has the necessary factory programming to replicate the original frequency plan. Generic Si5338 parts require reprogramming via ClockBuilder Pro software.