https://docs.opsero.com/op081/datasheet/Recent content in Datasheet on Opsero DocsHugoenCopyright (c) 2026 Opsero Electronic Design Inc.Mon, 23 Feb 2026 00:00:00 -0500https://docs.opsero.com/op081/datasheet/overview/Mon, 23 Feb 2026 00:00:00 -0500https://docs.opsero.com/op081/datasheet/overview/<h2 id="description">Description</h2> <p>The Quad SFP28 FMC is an add-on expansion board (FPGA Mezzanine Card) for FPGA and SoC-based development boards. It has four SFP28 module slots, allowing the connection of up to four SFP, SFP+ or SFP28 modules to the carrier development board. The mezzanine card features a jitter-attenuating clock multiplier, supporting Synchronous Ethernet applications, and uses level translators to support a wide range of FPGA I/O voltages from 1.2VDC to 3.3VDC.</p>https://docs.opsero.com/op081/datasheet/pin-configuration/Mon, 23 Feb 2026 00:00:00 -0500https://docs.opsero.com/op081/datasheet/pin-configuration/<h2 id="pinout-table">Pinout table</h2> <p>The Quad SFP28 FMC has a high pin count FPGA Mezzanine Card (FMC) connector, providing the connections to the FPGA on the development board. The following table defines the pinout of the FMC connector and describes each pin&rsquo;s purpose on this mezzanine card.</p>https://docs.opsero.com/op081/datasheet/specifications/Mon, 23 Feb 2026 00:00:00 -0500https://docs.opsero.com/op081/datasheet/specifications/<h2 id="recommended-operating-conditions">Recommended Operating Conditions</h2> <table> <thead> <tr> <th>SUPPLY VOLTAGE</th> <th>MIN</th> <th>TYP</th> <th>MAX</th> <th>UNIT</th> </tr> </thead> <tbody> <tr> <td>12 VDC</td> <td>+11.4</td> <td>+12</td> <td>+12.6</td> <td>V</td> </tr> <tr> <td>3.3 VDC</td> <td>+3.14</td> <td>+3.3</td> <td>+3.46</td> <td>V</td> </tr> <tr> <td>VADJ (1.2VDC)</td> <td>+1.14</td> <td>+1.2</td> <td>+1.26</td> <td>V</td> </tr> <tr> <td>VADJ (1.5VDC)</td> <td>+1.425</td> <td>+1.5</td> <td>+1.575</td> <td>V</td> </tr> <tr> <td>VADJ (1.8VDC)</td> <td>+1.71</td> <td>+1.8</td> <td>+1.89</td> <td>V</td> </tr> <tr> <td>VADJ (2.5VDC)</td> <td>+2.375</td> <td>+2.5</td> <td>+2.625</td> <td>V</td> </tr> <tr> <td>VADJ (3.3VDC)</td> <td>+3.135</td> <td>+3.3</td> <td>+3.465</td> <td>V</td> </tr> </tbody> </table> <p>Notes:</p>https://docs.opsero.com/op081/datasheet/detailed-description/Mon, 23 Feb 2026 00:00:00 -0500https://docs.opsero.com/op081/datasheet/detailed-description/<h2 id="hardware-overview">Hardware Overview</h2> <p>The figure below illustrates the various hardware components that are located on the top-side (component side) of the Quad SFP28 FMC.</p>https://docs.opsero.com/op081/datasheet/mechanical/Mon, 23 Feb 2026 00:00:00 -0500https://docs.opsero.com/op081/datasheet/mechanical/<h2 id="height-profile">Height Profile</h2> <p>The figure below illustrates the height profile of the Quad SFP28 FMC. All of the components on the Quad SFP28 FMC Max fit within the 10mm gap between the FMC card and the development board. The quad SFP28 cage ( Link-PP, SFP28 Quad Cage, <a href=https://download.opsero.com/datasheet/LP14CC01000S.pdf target="_blank">LP14CC01000S</a> ) has a height of less than 10mm.</p>https://docs.opsero.com/op081/datasheet/compatibility/Mon, 23 Feb 2026 00:00:00 -0500https://docs.opsero.com/op081/datasheet/compatibility/<p>This section of the documentation aims to list all of the development boards for which compatibility with the Quad SFP28 FMC has been checked, and to list constraints and any notes concerning special requirements or limitations with the board.</p>https://docs.opsero.com/op081/datasheet/revision/Mon, 23 Feb 2026 00:00:00 -0500https://docs.opsero.com/op081/datasheet/revision/<h2 id="rev-a">Rev A</h2> <ul> <li>First board release</li> </ul>