Please tell me the input level when using J12 and J15 as input.
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User,
The default input level is set to 1.8V. This is controlled by regulator U22. Switch SW7 allows this to be changed if required. See attached schematic and the TSW14J57EVM User's Guide, which can be found under the TSW14J57EVM product folder on the TI website, for more information.
Regards,
Jim