MS SQL ODBC driver for Power BI
Download and install Microsoft® ODBC Driver 17 for SQL Server® - https://www.microsoft.com/en-us/download/details.aspx?id=56567
Open ODBC Data Source administration for 64bit platform, switch to "System DSN" tab.

Add a new source, select the installed ODBC Driver 17 for SQL Server.

Enter database server:

Specify database authentication method:

Specify database access:
Default database name is SQDB6 or SQDB6_DWH. The namedependson selected database deployment scenario.
No change:
You may need to adjust configuration for data encryption.
Finish and test connection:

Repeat steps 3 to 8 for 32 bit ODBC Data Source as well, use exactly the same name.
Reference: