SI5338C-B10489-GM

Overview

The SI5338C-B10489-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 formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. The device operates with a core supply of 1.8 V, 2.5 V, or 3.3 V and accepts inputs up to 710 MHz. Key electrical parameters include a typical phase jitter of 0.7 ps RMS, a maximum output frequency of 710 MHz, and an operating temperature range of -40°C to +85°C.

Feature Summary

• MultiSynth™ Technology: Generates four independent clocks with 0 ppm precision using patented synthesis architecture.
• Flexible Input/Output: Supports external crystals (8-30 MHz), CMOS, SSTL/HSTL, and differential inputs up to 710 MHz; outputs configurable for various signal formats and voltages.
• Glitchless Frequency Adjustment: Features independent frequency increment/decrement in 1 ppm steps and phase adjustment with <20 ps accuracy.
• Spread Spectrum Capability: Highly configurable spread spectrum on any output with frequencies from 5 to 350 MHz and modulation rates from 33 to 63 kHz.

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant timing
• Ethernet switch/router and 1 GbE/10 GbE driver clocking
• Telecom line cards, MSAN, DSLAM, and PON systems
• Fiber Channel and Storage Area Network (SAN) applications

Procurement Notes

Verify the specific ordering suffix B10489 against the manufacturer's current datasheet to confirm factory programming settings. Ensure I2C pull-up voltage compatibility if operating below 2.5 V by writing to register 27. Confirm package orientation and pinout alignment during PCB layout review.

Selection Notes

Select this component when replacing multiple discrete oscillators with a single low-jitter programmable source. Ensure the required output format (LVPECL, LVDS, etc.) and voltage levels match the load requirements. Verify that the input reference frequency falls within the supported ranges for the desired output configuration.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It is designed to replace up to four different frequency crystal oscillators. The device integrates a PLL, MultiSynth synthesizers, and highly configurable output drivers into a compact 4x4 mm QFN-24 package.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's cross-reference tools for equivalent devices within the Si533x series or other compatible clock generators.