SI5345A-B03682-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345A-B03682-GM is a 10-output jitter attenuator and clock multiplier from the Si5345 family. It supports any-frequency generation up to 1028 MHz using integer and fractional synthesis modes. The device features four inputs, accepting differential signals up to 750 MHz or LVCMOS up to 250 MHz. Outputs are configurable for LVDS, LVPECL, LVCMOS, CML, and HCSL formats. It operates on a 1.8 V core voltage and 3.3 V I/O supply within a -40°C to +85°C temperature range. The component is housed in a 64-QFN package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Combines fourth-generation DSPLL and MultiSynth technologies for ultra-low jitter performance.
• Supports free-run, synchronous, and holdover modes with automatic or manual input switching.
• Features fully integrated loop filter and digitally programmable jitter attenuation bandwidth.
• Includes in-circuit programmable non-volatile memory for known power-up configuration.

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 factory preprogramming details. Confirm package availability and lead times through authorized distributors. Ensure compliance with RoHS-6 standards and check for any process change notifications relevant to this part number before finalizing procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when high-frequency output generation up to 1028 MHz is required with integer and fractional synthesis capabilities. It is suitable for applications demanding SyncE compliance and low jitter. Consider the Si5345B variant if the maximum frequency requirement is limited to 350 MHz. Use ClockBuilder Pro software for configuration.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345/44/42 Rev D family of jitter attenuators. The Si5345 variant specifically provides four inputs and ten outputs in a 64-QFN package. It utilizes Skyworks' proprietary MultiSynth and DSPLL technologies to generate precise clock signals from various input sources.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Si5345A-D-GM: Standard version with identical electrical specifications but without custom factory preprogramming.

Clock Generators, PLLs, Frequency Synthesizers FAQ

What is the maximum output frequency supported by the SI5345A?

The SI5345A supports differential output frequencies up to 1028 MHz and LVCMOS output frequencies up to 250 MHz.

Does the device support hitless input switching?

Yes, the device supports hitless input switching between two clock inputs that have a fixed phase relationship or are fractionally related.

How is the device configured?

The device is programmable via an I2C or SPI serial interface and can be configured using Skyworks’ ClockBuilder Pro software.