Depending on operation in EQ or CD mode, the LMH1297 performance was measured with the test setups shown in Figure 9-3 and Figure 9-4.
The eye diagrams in this subsection show how the LMH1297 improves overall signal integrity in the data path for 75-Ω coax at SDI_IO+ when operating in EQ mode and 100-Ω differential FR4 PCB trace at IN0± when operating in CD mode.
![11.88 Gbps, CC = 75-m Belden 1694A, Reclocked GUID-BC1797FE-C669-402C-B976-7CE3C74A4471-low.png](/ods/images/SNLS545E/GUID-BC1797FE-C669-402C-B976-7CE3C74A4471-low.png)
EQ mode, measured at OUT0± HOST_EQ0 = F, SDI_OUT_SEL = H, OUT_CTRL = F
Figure 9-5 11.88 Gbps, CC = 75-m Belden 1694A, Reclocked![5.94 Gbps, CC = 120-m Belden 1694A, Reclocked GUID-B397D0CF-249E-4805-9683-38671D217EDA-low.png](/ods/images/SNLS545E/GUID-B397D0CF-249E-4805-9683-38671D217EDA-low.png)
EQ mode, measured at OUT0± HOST_EQ0 = F, SDI_OUT_SEL = H, OUT_CTRL = F
Figure 9-7 5.94 Gbps, CC = 120-m Belden 1694A, Reclocked![2.97 Gbps, CC = 200-m Belden 1694A, Reclocked GUID-E3BA11CF-33EA-4F1E-B4CE-3A75F2848036-low.png](/ods/images/SNLS545E/GUID-E3BA11CF-33EA-4F1E-B4CE-3A75F2848036-low.png)
EQ mode, measured at OUT0± HOST_EQ0 = F, SDI_OUT_SEL = H, OUT_CTRL = F
Figure 9-9 2.97 Gbps, CC = 200-m Belden 1694A, Reclocked![1.485 Gbps, CC = 300-m Belden 1694A, Reclocked GUID-15A83C18-2E04-43E9-A742-9D6E6104C368-low.png](/ods/images/SNLS545E/GUID-15A83C18-2E04-43E9-A742-9D6E6104C368-low.png)
EQ mode, measured at OUT0± HOST_EQ0 = F, SDI_OUT_SEL = H, OUT_CTRL = F
Figure 9-11 1.485 Gbps, CC = 300-m Belden 1694A, Reclocked![270 Mbps, CC = 600-m Belden 1694A, Reclocked GUID-0900F8C0-6D27-416D-9275-F8EDE5B8D30A-low.png](/ods/images/SNLS545E/GUID-0900F8C0-6D27-416D-9275-F8EDE5B8D30A-low.png)
EQ mode, measured at OUT0± HOST_EQ0 = F, SDI_OUT_SEL = H, OUT_CTRL = F
Figure 9-13 270 Mbps, CC = 600-m Belden 1694A, Reclocked![11.88 Gbps, TL = 20" FR4, Reclocked GUID-EFED0C7D-8820-4EEC-AA2C-B792B5809C90-low.png](/ods/images/SNLS545E/GUID-EFED0C7D-8820-4EEC-AA2C-B792B5809C90-low.png)
CD mode, measured at SDI_IO+ HOST_EQ0 = F, SDI_OUT_SEL = H, OUT_CTRL = F
Figure 9-6 11.88 Gbps, TL = 20" FR4, Reclocked![5.94 Gbps, TL = 20" FR4, Reclocked GUID-FA5E6F10-C12B-45A3-A1C6-724E232B45E7-low.png](/ods/images/SNLS545E/GUID-FA5E6F10-C12B-45A3-A1C6-724E232B45E7-low.png)
CD mode, measured at SDI_IO+ HOST_EQ0 = F, SDI_OUT_SEL = H, OUT_CTRL = F
Figure 9-8 5.94 Gbps, TL = 20" FR4, Reclocked![2.97 Gbps, TL = 20" FR4, Reclocked GUID-BB90BAA6-944A-4C64-B30B-E53D052CFFEB-low.png](/ods/images/SNLS545E/GUID-BB90BAA6-944A-4C64-B30B-E53D052CFFEB-low.png)
CD mode, measured at SDI_IO+ HOST_EQ0 = F, SDI_OUT_SEL = H, OUT_CTRL = F
Figure 9-10 2.97 Gbps, TL = 20" FR4, Reclocked![1.485 Gbps, TL = 20" FR4, Reclocked GUID-0912852B-0B80-4E29-A4BF-74FA93403DC3-low.png](/ods/images/SNLS545E/GUID-0912852B-0B80-4E29-A4BF-74FA93403DC3-low.png)
CD mode, measured at SDI_IO+ HOST_EQ0 = F, SDI_OUT_SEL = H, OUT_CTRL = F
Figure 9-12 1.485 Gbps, TL = 20" FR4, Reclocked![270 Mbps, TL = 20" FR4, Reclocked GUID-1CE9041D-0798-434A-BD16-FAA0B0DF9476-low.png](/ods/images/SNLS545E/GUID-1CE9041D-0798-434A-BD16-FAA0B0DF9476-low.png)
CD mode, measured at SDI_IO+ HOST_EQ0 = F, SDI_OUT_SEL = H, OUT_CTRL = F
Figure 9-14 270 Mbps, TL = 20" FR4, Reclocked