SI5345A-B03133-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5345A-B03133-GMR is a low-jitter, 10-output clock synthesizer and jitter attenuator. It supports any-frequency generation up to 1028 MHz with ultra-low jitter of 90 fs rms. The device features four inputs (differential: 8 kHz–750 MHz; LVCMOS: 8 kHz–250 MHz) and ten configurable outputs supporting LVDS, LVPECL, LVCMOS, CML, and HCSL formats. Powered by 1.8 V core and 3.3 V I/O supplies, it operates within –40 °C to +85 °C in a 64-QFN package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using fourth-generation DSPLL and MultiSynth technologies.
• Provides programmable jitter attenuation bandwidth ranging from 0.1 Hz to 4 kHz for optimized performance.
• Supports hitless input clock switching between fractionally related clocks and glitchless on-the-fly frequency changes.
• Includes in-circuit programmable non-volatile memory to ensure known frequency configuration upon power-up.

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 tape-and-reel packaging and factory preprogramming status. Confirm RoHS compliance and lead times directly with authorized distributors or the manufacturer, as availability may vary.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model for applications requiring high channel counts and fractional synthesis capabilities up to 1028 MHz. Ensure the design accommodates the required 1.8 V and 3.3 V supply rails and utilizes the ClockBuilder Pro software for optimal loop bandwidth and frequency configuration.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345 family, which includes variants with different output counts and frequency ranges. The 'A' designation indicates support for fractional synthesis modes up to 1028 MHz, distinguishing it from lower-frequency or integer-only counterparts within the same series.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct pin-compatible replacements include other Si5345A variants with different factory preprogrammed configurations. Verify that substitute part numbers maintain the same 1028 MHz maximum output frequency and 64-QFN package dimensions.