SI5338A-B05431-GMR

Overview

The SI5338A-B05431-GMR is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes four independent output clocks with zero ppm precision via an I2C interface. The device supports input frequencies up to 710 MHz and generates outputs ranging from 0.16 MHz to 710 MHz. 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 maximum phase jitter of 0.7 ps RMS. It operates within a temperature range of -40 °C to +85 °C.

Feature Summary

• MultiSynth technology enables any-frequency synthesis on four differential output drivers with 0 ppm precision.
• Supports PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliance.
• Flexible input reference options including external crystals (8-30 MHz), CMOS (5-200 MHz), SSTL/HSTL (5-350 MHz), and differential inputs (5-710 MHz).
• Independent output voltage per driver selectable at 1.5, 1.8, 2.5, or 3.3 V.

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape/reel specifications. Ensure compatibility with the required I2C bus voltage levels, as the device supports standard and fast modes across different supply voltages.

Selection Notes

Select this component for designs requiring low-jitter (< 0.7 ps RMS) frequency synthesis with flexible output formats such as LVPECL, LVDS, HCSL, or CMOS. Confirm that the application requires independent frequency generation on all four outputs and utilizes the 24-QFN package form factor.

Part Context

This part belongs to the Si5338 family of high-performance clock generators. The 'A' designation typically indicates the highest performance tier within the series, supporting frequencies up to 710 MHz. The '-GMR' suffix denotes the reel packaging format for surface-mount assembly.

Replacement Considerations

Direct replacements within the same family include SI5338A-B-GM or SI5338Q-B-GMR. Verify pinout compatibility and ensure the substitute part supports the required output frequency and jitter specifications for the target application.