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AD9154 Blanking State Machine Blocking DAC Outputs

Question asked by zhylunwen on Feb 15, 2017
Latest reply on May 7, 2017 by zhylunwen

I'm working with an AD9154 board, and it looks like the blanking state machine is blocking the DAC outputs: I'm reading back 0x00 from register 0x147, which according to Table 73 in the datasheet indicates that the blanking state machine (BSM) is holding the output data at midscale.

TxEN state can be observed using PDP_OUT.

 

It seems that all registers are OK,for example 0x470-0x473…………

 

Are there any other conditions that could cause the BSM to hold the output data at midscale?

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