Opal Kelly issues this PCN to existing customers of the listed product(s) to inform them of changes and/or updates that may affect current inventory or current and future applications of the product.
30 September 2022
The following items are affected by this PCN:
PCB revisions CXX and later are affected by this PCN. Revisions BXX and earlier are not affected by this change. The PCB revision is indicated in silkscreen in the location shown below.
Revisions BXX and earlier are not affected.
Revisions CXX and later are affected.
Reason for the Change
The Intel Enpirion family of power modules has been discontinued by the manufacturer. Enpirion regulators are used on the XEM8320 to generate the on-board adjustable VIO supplies. Opal Kelly has identified suitable replacement parts for these supplies.
Description of the Change
The Enpirion devices on the XEM8320 are being replaced as described in the table below.
|Reference||Voltage||Application||Original P/n||Replacement P/N|
|U28||VIO1||Adjustable supply voltage for FPGA banks 66, 67||Intel EN5311QI||Texas Instruments TPS65400RGZ1|
|U30||VIO2||Adjustable supply voltage for FPGA banks 84, 87||Intel EN5311QI||Texas Instruments TPS65400RGZ1|
|U31||VIO2||Adjustable supply voltage for FPGA banks 86||Intel EN5311QI||Texas Instruments TPS65400RGZ1|
- The Texas Instruments TPS65400RGZ is capable of the same set of output voltages as the Intel EN5311QI. There is no change to VADJ configuration as described in Device Settings.