SI5338N-B05066-GM

Overview

The SI5338N-B05066-GM is a programmable quad clock generator from Skyworks Solutions, utilizing MultiSynth technology to synthesize any frequency on four independent output drivers. It supports differential and single-ended outputs with frequencies up to 710 MHz. The device features low phase jitter of 0.7 ps RMS typical, zero ppm frequency accuracy, and flexible input references including crystals, CMOS, SSTL/HSTL, and differential signals. It operates on a single core supply of 1.8, 2.5, or 3.3 V and is programmed via an I2C/SMBus interface.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with 0 ppm precision.
• Low phase jitter performance of 0.7 ps RMS typical for high-speed applications like PCIe Gen 3/4.
• Flexible input support for external crystals (8-30 MHz), CMOS (5-200 MHz), SSTL/HSTL (5-350 MHz), and differential inputs (5-710 MHz).
• Independent output voltage configuration per driver at 1.5, 1.8, 2.5, or 3.3 V.

Applications

• PCIe Gen 1/2/3/4 common clock and SRNS compliant systems.
• Ethernet switch/router timing.
• Processor and FPGA clocking.
• Broadcast video/audio timing.
• Telecom line cards and MSAN/DSLAM/PON equipment.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm pinout and functional configuration. Ensure compatibility with the intended I2C bus voltage levels, as the device supports standard mode and fast mode operations with pull-up voltages ranging from 1.71 V to 3.63 V.

Selection Notes

Select this component when multiple independent clock frequencies are required from a single package. Consider the output format requirements (LVPECL, LVDS, HCSL, CMOS, etc.) and verify that the desired output frequencies fall within the supported ranges for each driver type. Ensure the input reference source matches one of the supported input types.

Part Context

The SI5338 series is designed to replace multiple discrete crystal oscillators in complex digital systems. It offers space-saving integration in a 4x4 mm QFN-24 package. The N suffix typically denotes a specific factory-programmed configuration variant within the broader Si5338 family.

Replacement Considerations

Direct replacements must be sought from the Si5338 family variants with matching programming configurations. Verify pin-to-pin compatibility and electrical specifications, particularly output drive strengths and jitter performance, before substituting.