SI5345D-B03696-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345D-B03696-GMR is a factory preprogrammed clock multiplier and jitter attenuator from the Si5345 Rev D family. It features four inputs and ten outputs, supporting output frequencies up to 350 MHz with integer and fractional synthesis modes. The device utilizes fourth-generation DSPLL technology to achieve ultra-low jitter of 90 fs rms. It operates on a core voltage (VDD) of 1.8 V ±5% and an analog supply (VDDA) of 3.3 V ±5%. The component is housed in a 64-QFN package measuring 9x9 mm and supports an operating temperature range of -40 to +85 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using integer and fractional synthesis.
• Provides ultra-low jitter performance of 90 fs rms via fourth-generation DSPLL technology.
• Supports hitless input clock switching between fractionally related inputs.
• 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 factory preprogrammed configuration associated with the suffix B03696 against the target design requirements. Confirm that the 350 MHz maximum output frequency aligns with system needs. Ensure the serial interface protocol matches the host controller capabilities.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this part when low jitter attenuation is critical for high-speed data transmission applications. The Si5345D variant specifically limits output frequencies to 350 MHz, distinguishing it from higher-frequency variants like the Si5345A. Use ClockBuilder Pro software to validate the preprogrammed settings or request custom configurations if the standard code does not meet specific frequency plans.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345/44/42 Rev D series, which integrates MultiSynth and DSPLL technologies. The Si5345 model specifically provides four inputs and ten outputs in a 64-pin QFN package. The 'D' designation indicates support for output frequencies up to 350 MHz with both integer and fractional synthesis modes.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Si5345B-D-GMR

Clock Generators, PLLs, Frequency Synthesizers FAQ

What is the maximum output frequency supported by the Si5345D variant?

The Si5345D variant supports output frequencies ranging from 100 Hz to 350 MHz.

How does the device handle input clock failures?

The device automatically enters holdover mode using stored historical frequency data when the selected input clock becomes invalid and no other valid inputs are available.

Is external loop filtering required for this device?

No, the loop filter is fully integrated on-chip, eliminating the need for discrete components and reducing noise coupling risks.