SI5345A-B03269-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345A-B03269-GM is a factory preprogrammed clock synthesizer and jitter cleaner from the Si5345 family. It features four inputs and ten outputs, supporting any-frequency generation up to 1028 MHz using integer and fractional synthesis modes. The device utilizes fourth-generation DSPLL and MultiSynth technologies to achieve ultra-low jitter performance of 90 fs rms. It operates within a temperature range of -40°C to +85°C and is housed in a 64-QFN package measuring 9x9 mm.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency
• Ultra-low jitter performance of 90 fs rms
• Supports free-run, synchronous, and holdover modes with automatic or manual input switching
• Highly configurable outputs compatible with LVDS, LVPECL, LVCMOS, CML, and HCSL

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 factory preprogrammed configuration associated with the numerical suffix B03269 against project requirements. Confirm that the ordering part number matches the intended frequency plan and operational settings stored in the non-volatile memory. Ensure compatibility with the required supply voltage and interface standards before procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component for applications requiring high-performance jitter attenuation and flexible frequency synthesis. The Si5345A variant supports differential outputs up to 1028 MHz. Use ClockBuilder Pro software to verify the preprogrammed configuration details. Consider the 64-QFN package dimensions for PCB layout constraints and thermal management requirements.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5345 family of 10-channel jitter attenuators. The 'A' designation indicates support for differential output frequencies up to 1028 MHz with integer and fractional synthesis. The 'B03269' suffix identifies a specific factory preprogrammed configuration, ensuring the device powers up with a known frequency setting without external programming.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other Si5345A variants such as SI5345A-D-GM for generic configurations. For lower frequency needs, Si5345B-D-GM may be suitable. Verify pinout and package compatibility when substituting with Si5344 or Si5342 series devices, noting differences in output count.