SiT95315

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Quad PLL, 12-output Jitter Cleaner

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The SiT95315 offers programmable quad fractional frequency translation based jitter cleaning with flexible input to output frequency translation options. The high performance DPLLs support up to 4 differential or 8 single-ended input clocks and provide 12 clock outputs. The clock outputs can be derived from any of the 4 PLLs in a fully flexible manner. This device is fully programmable with the I2C/SPI interface or an on-chip one time (OTP) programmable non-volatile memory for factory pre-programmed devices.

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64-pin 9x9 mm QFN Network Synchronizers - Jitter Cleaners package
"Specs" "Value"
Operating Temperature Range (°C) -40 to 85
Package Type (mm²) 9x9 mm, 64-pin QFN
Number of Inputs 4
Number of Outputs 12
Input Type LVCMOS, LVDS, LVPECL, CML
Input Frequency Range 8 kHz to 2.1 GHz (Differential)
Output Type LVPECL, CML, HCSL, LVDS, LVCMOS
Output Frequency Range 0.5 Hz to 2.94912 GHz (Differential)
Number of PLL/Clock Domains 4 PLL
Phase Jitter (rms) 85 fs typ.; 70 fs typ. (with MEMS oscillator)
Repeatable Input-Output Delay ±225 ps
Frequency Control DCO 0.001 ppt (all outputs)
Phase Control DCO <1 ps (all outputs)
Internal ZDB Mode <0.5 ns input to output delay variation
Programmability NVM OTP, External EEPROM, Partial autonomous, SPI/I2C
Features Wander attenuation loop bandwidth down to 0.09 mHz, ±25 ps maximum phase hit, JESD204B/C support
Availability Production
  • 64-pin 9x9 mm QFN Clock Generators - Network Synchronizers - Jitter Cleaners package
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    64-pin 9x9 mm QFN Clock Generators - Network Synchronizers - Jitter Cleaners package

  • Best-in-class 85 fs / 70 fs integrated jitter for quad PLL
  • JESD204B/C support for data converter clocks
  • Best-in-class hitless switching performance with <25 ps hit
  • External EEPROM support and on-chip OTP
  • Frequency DCO (0.001 ppt) and phase control DCOs (< 1 ps resolution)
  • Internal ZDB on all PLLs with < +/- 500 ps input to output delay across temp
  • Independent VDDO (3.3 / 2.5 / 1.8 V)
  • Fully flexible output and input mux
SiT95315 Functional Overview
  • Ethernet
  • Optical Transport Network (OTN) Clocking for Framers, Mappers & Processors
  • Microwave Backhaul
  • 100G / 200G / 400G / 800G Ethernet
  • Wireless Networks
  • Small Cells
  • Storage, Servers & Datacenters
  • SONET/SDH Stratum 3
  • Test & Measurement
  • Broadcast Video

SiT9531x Evaluation Board HW User Manual – Configure and evaluate device performance

Setup SiTGUI Cascade2 3.6 – Download software .exe file

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