SI5338K-B10518-GMR

Overview

The SI5338K-B10518-GMR is a programmable quad clock generator from Skyworks Solutions, utilizing MultiSynth technology to synthesize any frequency with zero ppm precision on four independent output drivers. It operates within a core supply range of 1.71 V to 3.63 V and supports input frequencies up to 710 MHz via differential inputs. The device features low phase jitter of 0.7 ps RMS typical, configurable output formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL, and allows independent voltage selection per driver (1.5 V, 1.8 V, 2.5 V, or 3.3 V). It is housed in a 4 x 4 mm QFN-24 package.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four differential output drivers with 0 ppm precision.
• Supports flexible input references including external crystals (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential inputs (5–710 MHz).
• Configurable output drivers support various signal formats: LVPECL/LVDS (up to 710 MHz), HCSL (up to 250 MHz), CMOS (up to 200 MHz), and SSTL/HSTL (up to 350 MHz).
• Features independent frequency increment/decrement for glitchless adjustments and spread spectrum capability on any output.

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

Procurement Notes

Verify the specific ordering suffix B10518 against the manufacturer's current documentation to confirm factory configuration details. Confirm availability status through authorized distributors as supply conditions may vary. Ensure I2C/SMBus interface compatibility with the host controller before integration.

Selection Notes

Select this component when independent, any-frequency synthesis is required for multiple clock domains with varying voltage levels. Ensure the application requires low jitter performance suitable for PCIe or high-speed serial interfaces. Verify that the input reference source matches one of the supported types (crystal, CMOS, or differential) and falls within the specified frequency ranges.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'K' suffix typically denotes specific output configurations or control pin assignments within the family, while 'B10518' indicates the pre-programmed register settings. The '-GMR' suffix designates the tape and reel packaging format.

Replacement Considerations

Direct replacements within the Si5338 family require matching the output count, frequency capabilities, and package type. Verify that alternative SKUs support the same output formats and voltage levels. Consult the manufacturer's cross-reference guide for confirmed substitutes with identical electrical characteristics and pinouts.