Other Parts Discussed in Thread: DS110DF111
Tool/software:
Hi Expert:
We meet an issue about the amplitude of vertical EOM.
We found that the register 0x28 was always read out around value of 0x9C, then VEO was calculated with about 487,5mV.
We were wondering whether this value 0x9C was the actual value of vertical EOM.
After that, we tried the steps as defined in datasheet like below to monitor full eye capture, but it didn’t make any sense.
VEO voltage always stays with about 487,5mV.
the VEO amplitude seems to be cut, even though we’ve already configured EOM range 0x11 with +/-400mV.
We tested different datarate and it always seemed to work with +/-200mV, but not +/-400mV.
We also checked this EOM range on TI DS110DF111 evaluation board, which is more ore less same with ours and confused us.
