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UG337: Si53208-EVB User's Guide
8-Output PCI-Express Gen1/2/3/4 and SRIS Clock Buffer Evalua-
tion Board
This document describes operation of the Silicon Laboratories Si53208-EVB evaluation
board. It's designed to evaluate the Si53208, 8-output PCI-Express Gen1/2/3/4 which
is an SRIS Clock Buffer. Selector switches make it easy to select the voltage for both
core and IO supplies. Jumpers allow for easy static configuration of the control inputs
as well as provide a port for external test equipment access. Similarly, each regulated
supply can be bypassed and driven externally for either precise voltage control or for
measuring PSRR performance. Convenient probe pads and isolation resistors permit
on-board single-ended or differential measurements. Finally, the PCB layout optimizes
signal integrity and skew which rounds out the capabilities of this EVB.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • July 26, 2021
KEY FEATURES
• Evaluation of Silicon Labs Si53208
• External power or USB powered
• DC-coupled differential output clocks
• DC-coupled differential input clock
• Switchable voltage settings
• Easy manual configuration via jumpers
• Easy current measurement
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Summary of Contents for Skyworks Si53208

  • Page 1 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 • July 26, 2021...
  • Page 2: Table Of Contents

    ..13 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 • July 26, 2021...
  • Page 3: Functional Description

    (e.g., min/max supply testing). 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 • July 26, 2021...
  • Page 4: Power Supply Switch Settings

    Figure 2.1. 2.1. Location of EVB Power and Voltage Switches and Jumpers 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 • July 26, 2021...
  • Page 5: Voltage Selection For Non-Output Supplies (Vdd, Vdda, And Vdd_Aux)

    (e.g., 30 mV -> 30 mA) 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 • July 26, 2021...
  • Page 6: Control Signal Jumper Settings

    (first) output clock edge of the corresponding output, the user can determine the disable (enable) time for that output. 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 • July 26, 2021...
  • Page 7: Output Clock Terminations

    Figure 4.1. Differential Output Clock Termination 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 • July 26, 2021...
  • Page 8: External Input Clock

    Si532xx datasheet. 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 • July 26, 2021...
  • Page 9: Leds

    USB port is present (independent of +5V_SELECT (SW3) switch setting) 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 • July 26, 2021...
  • Page 10: Quick Start - Board Configuration Check List

    7. Connect power, either via USB port or external +5 V power supply as chosen in previous step. 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 • July 26, 2021...
  • Page 11: Board Schematic, Bom, And Layout

    The schematic, BOM, and layout files for the Si53208-EVB can be found at: Si53208-evaluation-kit. 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 • July 26, 2021...
  • Page 12: Appendix: Typical Waveplots

    9.1 Differential Clock (DIFF_0) Output (Differential Waveform) 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 • July 26, 2021...
  • Page 13: Differential Clock (Diff_0) Crossing Voltage (100Mhz) (Single-Ended Waveform)

    9.3 Differential clock (DIFF_0) Crossing Voltage (200MHz) (Single-ended waveform) 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 • July 26, 2021...
  • Page 14 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.

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