SI5338A-B01085-GMR

Overview

The SI5338A-B01085-GMR is a programmable quad clock generator utilizing MultiSynth technology to synthesize any frequency on four independent output drivers. It supports differential and single-ended formats including LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL. The device operates from a 1.8 V, 2.5 V, or 3.3 V core supply with a typical current of 45 mA. Maximum input and output frequencies reach 710 MHz for differential signals. It features low phase jitter of 0.7 ps RMS typ, glitchless frequency adjustments in 1 ppm steps, and configurable spread spectrum modulation. The component is housed in a 4 x 4 mm QFN-24 package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with 0 ppm precision.
• Supports flexible input references: external crystal (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential (5–710 MHz).
• Highly-configurable outputs support LVPECL/LVDS/CML up to 710 MHz, HCSL up to 250 MHz, and CMOS up to 200 MHz.
• Independent output voltage per driver selectable at 1.5, 1.8, 2.5, or 3.3 V.

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to confirm pinout configuration and factory programming parameters. Ensure I2C pull-up voltages are compatible with the selected core supply voltage. Check for moisture sensitivity levels and recommended reflow profiles during assembly planning.

Selection Notes

Select this model when independent frequency synthesis across four outputs is required with low jitter performance. Verify that the target application supports the available output formats (LVPECL, LVDS, etc.) and voltage levels. Confirm that the input reference source matches the supported frequency ranges for crystal, CMOS, or differential inputs.

Part Context

This component belongs to the Si5338 family of I2C-programmable clock generators. It is designed to replace multiple discrete oscillators by providing flexible frequency translation and buffering capabilities within a compact footprint.

Replacement Considerations

Consult the official datasheet for cross-reference information. No public substitute part numbers are confirmed in the provided documentation.