Si5342

Si5345/44/42 Rev D Data Sheet 10-Channel, Any-Frequency, Any-Output Jitter Attenuator/Clock Multiplier These jitter attenuating clock multipliers combine fourth-generation DSPLL™ and MultiSynth™ technologies to enable any-frequency clock generation and jitter attenuation for applications requiring the highest level of jitter performance. These devices are programmable via a serial interface with in-circuit programmable non-volatile memory (NVM) so they always power up with a known frequency configuration. They support free-run, synchronous, and holdover modes of operation, and offer both automatic and manual input clock switching. The loop filter is fully integrated on-chip, eliminating the risk of noise coupling associated with discrete solutions. Furthermore, the jitter attenuation bandwidth is digitally programmable, providing jitter performance optimization at the application level. Programming the Si5345/44/42 is easy with Skyworks’ ClockBuilder Pro™ software. Factory preprogrammed devices are also available. 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 Broadcast video Test and measurement ITU-T G.8262 (SyncE) compliant 25-54 MHz XTAL KEY FEATURES Generates any combination of output frequencies from any input frequency Ultra-low jitter of 90 fs rms External Crystal: 25 to 54 MHz Input frequency range Differen...