Si53019-A01A 19-OUTPUT PCIE GEN 3 BUFFER Features Nineteen 0.7 V current-mode, Spread spectrum tolerable HCSL PCIe Gen 3 outputs 50 ps output-to-output skew 100 MHz /133 MHz PLL Fixed 0 ps input to output delay operation, supports PCIe and Low phase jitter (Intel QPI, PCIe QPI Gen 1/Gen 2/Gen 3/Gen 4 PLL bandwidth SW SMBUS common clock compliant programming overrides the latch Gen 3 SRNS Compliant value from HW pin 100 ps input-to-output delay 9 selectable SMBus addresses Extended Temperature: Fixed external feedback path 40 to 85 C Ordering Information: 8 dedicated OE pin Package: 72-pin QFN See page 32. PLL or bypass mode Applications Pin Assignments Server Data Center Storage Network Security VDDA 1 54 OE11 GNDA 2 53 DIF 11 IREF 3 52 DIF 11 51 OE10 Description 100M 133M 4 HBW BYPASS LBW 5 50 DIF 10 49 DIF 10 PWRGD / PWRDN 6 GND 7 48 OE9 DIF 9 VDDR 8 47 Si53019-A01A DIF 9 The Si53019-A01A is a 19-output, current mode HCSL differential clock CLK IN 9 46 VDD CLK IN 10 45 GND SA 0 11 44 buffer that meets all of the performance requirements of the Intel OE8 SDA 12 43 SCL 13 42 DIF 8 DIF 8 SA 1 14 41 DB1900Z specification. The device is optimized for distributing reference FB IN 15 40 OE7 FB IN 16 39 DIF 7 clocks for Intel QuickPath Interconnect (Intel QPI), PCIe 17 38 DIF 7 FB OUT OE6 FB OUT 18 37 Gen1/Gen2/Gen3/Gen4, SAS, SATA, and Intel Scalable Memory Interconnect (Intel SMI) applications. The VCO of the device is optimized to support 100 MHz and 133 MHz 2 Patents pending 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. Download it for free at Si53019-A01A Functional Block Diagram OE(5 12) 8 FB OUT FB IN FB IN 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 IREF 2 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.6 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 29, 2021