The Signal level for TONE 1KHz on the PDM 1383 ( Analog Audio Out) is -9 dBFs and it is as following by setting the Full Scale Level:

Full Scale Level
Tone Level
24 dBu
+ 15 dBu
22 dBu
+ 13 dBu
20 dBu
+ 11 dBu
18 dBu
+ 9 dBu
15 dBu
+ 6 dBu
12 dBu
+ 3 dBu
Line
-11 dBu