Part Number: LMH1219
Hi Team,
We use LMH1219 with LMH1218 to drive BNC cable. We find it link down even when we use 2 meter Canare 12G-SDI BNC cable to test with 11.88Gbps.
The test setup is signal input from LMH1219 IN0 (single ended 75Ω) with 2 mete cable to OUT0 (differential 100Ω), and then to LMH1218 IN0 (differential 100Ω) and output with 2 meter cable from OUT0 (single ended 75Ω).
The question is:
1. In register map of datasheet, there is only EQ configuration of IN1, then what about IN0? We select IN0 to OUT0 and set EQ of IN1 in datasheet, there is no change.
2. In order to increase the driving ability of BNC cable, how should we set with LMH1219 and LMH1218?
3. Is EOM needed to be configured?
Thank you.