SI53108-EK

Si53108-EVB S i 5 3 1 0 8 E VA LUAT IO N B OARD U S E R ’ S G U I D E Description The Si53108-EVB can be used to evaluate the Si53108A01AGM, an 8-output PCIe Gen1/2/3 buffer that can operate in either fanout or zero delay mode. Features 10-inch traces to evaluate signal integrity The signal traces of the input and outputs have a single-ended impedance of 50 ohms, and differential impedance of 100 ohms. The series resistance on the outputs are set to match to this impedance design. DC pin controls per data sheet specification. Ability to measure input to output propagation delay. Ability to measure PCIe clock jitter. Ability 2 to program features of Si53108-A01AGM via I C interface. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 17, 2021 Si53108-EVB 1. Schematics     Figure 1. Schematic 1 2 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 17, 2021 Si53108-EVB Figure 2. Schematic 2 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 3 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 17, 2021 Si53108-EVB Figure 3. Schematic 3 4 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 17, 2021 Si53108-EVB 2. Input and Power Supply Sequencing The Si53108-A01AGM should be powered up with supply at both the VDD and VDD_IO nodes (at the jumpers available on the EVB). A 100MHz or 133MHz HCSL input clock should be applied to pins 8 and 9. There is no internal or on-board resistive termination, therefore HCSL termination needs to be provided at the input if needed by the driver. The input clock should be applied only after the supplies are stable. 3. Quick Start Guide: 1. Enable supply on the VDD pin. 2. Enable supply on the VDDIO pin. 3. Apply input clock on the SMA connectors CLK_IN/CLK_IN# and measure the return path clock on CLK_IN_RET, CLK_IN#_RET. Figure 4. Clock Return Path a. The input clock measured at J32, J33 needs a 50-ohm termination on the scope. b. The attenuation will be 1:10 after the above termination. Appropriate scaling (10x) needs to be set at the scope to adjust for the scaling. 4. The output clocks are now set up and can be measured on an oscilloscope or frequency domain measurement instrument. 4. Usage of the EVB 1. Once the EVB has been set up, the following can be evaluated: 2. Signal integrity of the device when driving 10-inch, 100-ohm differential traces. 3. Effect of capacitance load on output signal integrity. 4. Output-to-output skew over 10-inch traces. 5. Input-to-output prorogation delay in BYPASS, HBW, and LBW modes using the input clock return path. 6. Measuring the power consumption of the device. 7. Modification of the device settings via the I2C interface. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 5 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 17, 2021 Si53108-EVB   Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 17, 2021 5. Bill of Materials 6 ClockBuilder Pro Customize Skyworks clock generators, jitter attenuators and network synchronizers with a single tool. With CBPro you can control evaluation boards, access documentation, request a custom part number, export for in-system programming and more! www.skyworksinc.com/CBPro Portfolio SW/HW Quality Support & Resources www.skyworksinc.com/ia/timing www.skyworksinc.com/CBPro www.skyworksinc.com/quality www.skyworksinc.com/support Copyright © 2021 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. 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