Datasheet

The O is the offset of the compression static curve. The offset input to the coefficient register is computed
by
20/
10
O
in
O 
There, O is -24dB to 24dB.
For example, it desired to set O=6dB, then
6/20
10 1.995
in
O 
, and the 5.24 format of the
in
O
is
0x1FE_C982.

Gain Smooth Filter
The Gain Smooth Filter is to smooth the gain and control the ratio of gain increase and decrease. The decay
time and attack is shown in Figure 5. The structure of the Gain Smooth filter is also the Alpha filter, so the
rise time computation is the same as the Energy filter which is
2.2 /
1
Ts ta
e 


Figure 44 Smooth Filter Characteristic