PTD08210W PCB layout and schematic?

HI there,

My customer is seeing switching noise from the TI UCD7242 (required for the 1V variable supply for the DSP) is getting into the ground reference and is then present in all other voltage supplies.

TI has a module, the ptd08d210w, that uses the UCD7242 and they say when it is plugged into their UCD9224EVM, they get something like 30mV of ripple. Does TI provide the PTD08210W PCB layout and schematic? The PCB layout is what we are more interested in, as we feel this is a layout issue.

Please advise. The customer has made multiple revs of the board and is ready to be done with this issue!!

Thanks in advance,

Amy