SNLS545E March 2017 – July 2022 LMH1297
PRODUCTION DATA
SMPTE specifications require different output driver rise and fall times depending on the operating data rate. To meet these requirements, the output edge rate of SDI_IO and SDI_OUT is automatically programmed according to the signal recovered by the reclocker. Typical edge rates at the cable driver output are shown in Table 8-9.
DETECTED DATA RATE | CABLE DRIVER OUTPUT EDGE RATE (TYP) |
---|---|
11.88 Gbps | 34 ps |
5.94 Gbps | 36 ps |
2.97 Gbps | 59 ps |
1.485 Gbps | 60 ps |
270 Mbps | 550 ps |
If the reclocker is bypassed, users must program the desired edge rate manually through register control. For more information, refer to the LMH1297 Programming Guide.