Hello,
We are interfacing an LMH0344 to an FPGA on another card, the FPGA card has a power sequencer that delays the power to it. The card with the LMH0344 powers up a few seconds before the FPGA, we are noticing that the LMH0344 seems to back-power the FPGA, we have tried using the CD and mute pins to disable the output from the LMH 0344, but there still appears to be a "leak" voltage from the LMH0344. Could you comfirm this or should we AC couple the two cards (devices) ?
Thanks,
Larry
