SI5335B-B05653-GMR

Overview

The SI5335B-B05653-GMR is a customizable quad clock generator and buffer from Skyworks Solutions, utilizing MultiSynth technology to synthesize four independent frequencies up to 350 MHz with 0 ppm error. It supports flexible input references including external crystals (25/27 MHz), CMOS, SSTL/HSTL, and differential signals. The device features highly configurable output drivers supporting LVPECL, LVDS, CML, HCSL, CMOS, and SSTL/HSTL formats at voltages of 1.5, 1.8, 2.5, or 3.3 V. Key electrical parameters include a core supply current of 45 mA in PLL mode and 12 mA in buffer mode, with a low phase jitter of 0.7 ps RMS. It operates on a single core supply of 1.8, 2.5, or 3.3 V within an ambient temperature range of –40 to +85 °C.

Feature Summary

• MultiSynth fractional divider technology enables independent synthesis of four non-integer-related frequencies up to 350 MHz with 0 ppm frequency error.
• Supports three independent, pin-selectable device configurations to replace multiple clock generators or buffers.
• Flexible input options include external crystals, CMOS, SSTL/HSTL, and differential clocks (10–350 MHz).
• Configurable output drivers support LVPECL, LVDS, CML, HCSL, CMOS, and SSTL/HSTL formats with independent voltage levels.

Applications

• PCI Express Gen 1/2/3/4 common clock generation and jitter attenuation
• Ethernet switch/router and 1 GbE/10 GbE timing
• DSL jitter attenuation for MSAN/DSLAM/PON systems
• Processor and FPGA clocking solutions
• Broadcast video/audio timing and Fibre Channel/SAN applications

Procurement Notes

Verify the specific factory-customized configuration associated with the B05653 suffix via the manufacturer's documentation or ClockBuilder Pro utility. Confirm that the required pin assignments and control logic match the system design requirements, as this part number represents a specific programmed variant rather than a generic unconfigured device.

Selection Notes

Select this component when a single device must replace multiple fixed-frequency oscillators or buffers. Ensure the application requires four independent output frequencies with potentially different formats and voltage levels. Verify that the input reference source matches one of the supported types: 25/27 MHz crystal, CMOS, SSTL/HSTL, or differential signal.

Part Context

This part belongs to the Si5335 family of web-customizable clock generators. The 'B' indicates a specific silicon revision or feature set within the series, while the alphanumeric suffix denotes a unique factory-programmed configuration generated through the ClockBuilder tool. It is manufactured by Skyworks Solutions Inc., formerly Silicon Labs.

Replacement Considerations

Generic Si5335 devices can be reprogrammed using ClockBuilder Pro to match this configuration if available. For direct pin-to-pin replacement without reprogramming, verify that the substitute part has identical factory-loaded registers and pin select settings.