SI5338D-B09539-GM

Overview

The SI5338D-B09539-GM is an I2C-programmable quad clock generator from Skyworks Solutions. It utilizes MultiSynth technology to synthesize any frequency on four independent output drivers with zero ppm precision. The device supports a core supply voltage of 1.8, 2.5, or 3.3 V and operates within a temperature range of –40 to +85 °C. Key electrical parameters include a maximum input frequency of 710 MHz for differential inputs and a typical phase jitter of 0.7 ps RMS. Outputs are configurable for LVPECL, LVDS, HCSL, CMOS, SSTL, HSTL, and CML formats.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with 0 ppm accuracy.
• Low phase jitter performance of 0.7 ps RMS typical.
• Flexible input reference options including external crystals (8–30 MHz), CMOS (5–200 MHz), and differential inputs (up to 710 MHz).
• Independent output voltage support per driver 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 timing.
• Processor and FPGA clocking.
• Broadcast video/audio timing.
• Telecom line cards and MSAN/DSLAM/PON applications.

Procurement Notes

Verify the specific ordering suffix B09539 against the manufacturer's current documentation to confirm the programmed configuration. Ensure the I2C pull-up voltage requirements are met if operating below 2.5 V by writing to register 27. Confirm package availability and moisture sensitivity level handling procedures prior to assembly.

Selection Notes

Select this component when low jitter (< 1 ps RMS) and flexible output format compatibility are required. Ensure the input source matches the supported frequency ranges for the chosen interface type. Verify that the required output frequencies can be synthesized within the device's VCO constraints, particularly for frequencies above 350 MHz where only two unique simultaneous outputs are supported.

Part Context

This part belongs to the Si5338 family of high-performance clock generators. The 'D' in the model number typically denotes a specific output configuration or speed grade variant within the series. The '-GMR' suffix indicates a tape-and-reel packaging option suitable for automated surface-mount assembly.

Replacement Considerations

Direct replacements must match the 24-QFN package and I2C programmability. Other Si5338 variants may differ in output drive strength or specific frequency limits. Consult the datasheet for pin-compatible alternatives within the same family if exact configuration matching is not possible.