SI5345B-B00003-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5345B-B00003-GMR is a low-jitter, 10-output clock synthesizer and jitter attenuator. It supports any frequency generation up to 350 MHz with ultra-low jitter performance of 90 fs rms. The device features four inputs (differential or LVCMOS) and ten configurable outputs supporting LVDS, LVPECL, LVCMOS, CML, and HCSL formats. Operating voltage ranges from 1.71 V to 3.47 V, with an operating temperature range of -40°C to +85°C. Maximum input frequency is 750 MHz for differential inputs. The component utilizes DSPLL and MultiSynth technologies for flexible clock multiplication and attenuation.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using fourth-generation DSPLL and MultiSynth technologies.
• Features in-circuit programmable non-volatile memory (NVM) allowing the device to power up with a known frequency configuration.
• Supports free-run, synchronous, and holdover modes with automatic and manual input clock switching capabilities.
• Includes fully integrated on-chip loop filter to eliminate noise coupling risks associated with discrete solutions.

Clock Generators, PLLs, Frequency Synthesizers Applications

• OTN muxponders and transponders
• 10/40/100 G networking line cards
• GbE/10 GbE/100 GbE Synchronous Ethernet (ITU-T G.8262)
• Carrier Ethernet switches
• SONET/SDH line cards

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and tape/reel specifications. Confirm RoHS compliance status and lead times directly with authorized distributors as availability may vary. Ensure the part number matches the exact Rev D datasheet requirements for your design implementation.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when applications require up to 10 outputs with frequencies capped at 350 MHz. Verify that the required output signal formats (LVDS, LVPECL, etc.) are supported by the specific pinout configuration. Ensure the system can accommodate the QFN-64 package dimensions and thermal requirements specified in the datasheet.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345 family of jitter attenuators and clock multipliers. It shares architectural similarities with the Si5344 and Si5342 models but offers a higher channel count with 10 outputs compared to 4 or 2 in other variants. All models utilize the same core DSPLL technology and software configuration tools.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Si5345A-D-GM provides similar functionality with a higher maximum output frequency range up to 1028 MHz. Si5345C-D-GM offers integer-only synthesis up to 1028 MHz. Check pin compatibility and software configuration files when substituting these variants.