SI5395B-A15668-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5395B-A15668-GM is a single PLL jitter attenuator from the Si5395 family, utilizing an external crystal reference. It provides 12 output clocks with a maximum frequency of 350 MHz and supports both integer and fractional synthesis modes. The device operates on a 1.71 V to 3.47 V supply within a -40°C to +85°C temperature range. It features a QFN-64 package and includes in-circuit programmable non-volatile memory for configuration storage.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using integer and fractional synthesis.
• Supports enhanced hitless switching to minimize phase transients during input clock transitions.
• Includes in-circuit programmable non-volatile memory to ensure known power-up configurations.

Clock Generators, PLLs, Frequency Synthesizers Applications

• 56G/112G PAM4 SerDes clocking
• OTN muxponders and transponders
• 10/40/100/200/400G networking line cards

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory preprogrammed configuration associated with the numerical suffix against the design requirements. Confirm that the external crystal reference matches the recommended 48 MHz to 54 MHz range for optimal performance. Ensure the serial interface settings align with the system controller capabilities.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when 12 outputs are required with frequencies up to 350 MHz. The B-grade designation indicates support for both integer and fractional synthesis modes. Choose this over A-grade if lower maximum output frequency is acceptable but flexibility in frequency generation is needed. Verify compatibility with the external crystal oscillator circuit.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5395 family, which combines fourth-generation DSPLL and Multi-Synth technologies. The family offers ultra-low jitter performance and high integration levels. The Si5395 variant specifically provides four inputs and twelve outputs, distinguishing it from the Si5394 (4 outputs) and Si5392 (2 outputs).

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Si5395A-A-GM

Clock Generators, PLLs, Frequency Synthesizers FAQ

What type of reference does the SI5395B-A15668-GM use?

It uses an external crystal (XTAL) or crystal oscillator (XO) reference, as indicated by the 'A' grade designation in the part number.

Does this device support fractional synthesis?

Yes, the 'B' grade in the part number signifies that the device supports both integer and fractional frequency synthesis modes.

What is the maximum output frequency for this specific grade?

The maximum output frequency for the Si5395B grade is 350 MHz.