The DS250DF230 has strong equalization capabilities that allow it to recover data over long and/or thin-gauge copper cables. Two pcs DS250DF230s can be used on a QSFP28 paddle card to create a half-active cable assembly which is longer and/or thinner than passive cables. Alternatively, four pcs DS250DF230 devices can be used on a QSFP28 paddle card to create a full-active cable assembly and achieve even longer reach and/or thinner cables.

Figure 9-7 shows these configurations, Figure 9-8 shows an example simplified schematic for a half-active cable application, and Figure 9-9 shows an example simplified schematic for a full-active cable application.

Figure 9-7 Active Cable Application Block Diagram

Figure 9-8 Half-Active Cable Application Schematic

Figure 9-9 Full-Active Cable Application Schematic