SI53119-EK Silicon Labs

Si53119 19-OUTPUT PCIE GEN 3 BUFFER Features Nineteen 0.7 V low-power, push- PLL or bypass mode pull HCSL PCIe Gen 3 outputs Spread spectrum tolerable 100 MHz /133 MHz PLL 1.05 to 3.3 V I/O supply voltage operation, supports PCIe and 50 ps output-to-output skew QPI 50 ps cyc-cyc jitter (PLL mode) PLL bandwidth SW SMBUS Low phase jitter (Intel QPI, PCIe programming overrides the latch Gen 1/2/3 common clock value from HW pin compliant) 9 selectable SMBUS addresses Gen 3 SRNS Compliant SMBus address configurable to 100 ps input-to-output delay Ordering Information: allow multiple buffers in a single Extended Temperature: See page 31. control network 3.3 V supply 40 to 85 C voltage operation 72-pin QFN Separate VDDIO for outputs Pin Assignments For variations of this device, contact Skyworks Solutions DIF 12 Applications VDDA 1 54 GNDA 2 53 DIF 12 100M 133M 3 52 VDD IO GND HBW BYPASS LBW 4 51 PWRGD / PWRDN 50 DIF 11 5 Server Data center GND 6 49 DIF 11 DIF 10 VDDR 7 48 CLK IN DIF 10 8 47 Storage Enterprise switches and routers Si53119 CLK IN 9 46 GND VDD SA 0 10 45 SDA 11 44 DIF 9 SCL 12 DIF 9 43 SA 1 13 42 DIF 8 Description FBOUT NC 14 41 DIF 8 FBOUT NC 15 VDD IO 40 GND 16 39 GND DIF 0 17 38 DIF 7 DIF 0 18 37 The Si53119 is a 19-output, low-power HCSL differential clock buffer that DIF 7 meets all of the performance requirements of the Intel DB1200ZL specifi- cation. The device is optimized for distributing reference clocks for Intel QuickPath Interconnect (Intel QPI), PCIe Gen1/Gen2/Gen3/Gen4, Patents pending SAS, SATA, and Intel Scalable Memory Interconnect (Intel SMI) applica- tions. The VCO of the device is optimized to support 100MHz and 2 133 MHz operation. Each differential output can be enabled through I C for maximum flexibility and power savings. Measuring PCIe clock jitter is quick and easy with the Skyworks Solutions PCIe Clock Jitter Tool. Down- load it for free at Si53119 Functional Block Diagram FB OUT SSC Compatible DIF 18:0 CLK IN PLL CLK IN 100M 133 HBW BYPASS LBW SA 0 Control SA 1 Logic PWRGD / PWRDN SDA SCL 2 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.3 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice September 3, 2021