BU9409FV_12 Datasheet, PDF (30/58 Pages) Rohm – 32bit Audio DSP

BU9409FV
Technical Note
Setting of P²Bass deep bass gain
Default = 00h
Select Address
&h74 [ 7：4 ]
Operational explanation
Command
0
1
2
3
4
5
6
7
Gain
0dB
+1dB
+2dB
+3dB
+4dB
+5dB
+6dB
+7dB
Command
8
9
A
B
C
D
E
F
Gain
+8dB
+9dB
+10dB
+11dB
+12dB
+13dB
+14dB
+15dB
Setting of P²Bass HPF cutoff frequency
Default = 0
Select Address
&h74 [ 3：2 ]
Value
0
1
2
3
60Hz
80Hz
100Hz
120Hz
Operational explanation
Setting of P²Bass LPF cutoff frequency
Default = 0
Select Address
&h74 [ 1：0 ]
Value
0
1
2
3
120Hz
160Hz
200Hz
240Hz
Operational explanation
ON/OFF of pseudo bass function
It can contribute to bass emphasis effect caused by pseudo bass. And it can also be used independently.
Default = 0
Select Address
&h72 [ 7 ]
Value
0
1
Operational explanation
Not using of pseudo bass function
Using of pseudo bass function
Setting of pseudo bass gain
Default = 00h
Select Address
&h72 [ 6：4 ]
Operational explanation
Command
0
1
2
3
Gain
-4dB
-2dB
0dB
+2dB
Command
4
5
6
7
Gain
+4dB
+6dB
+8dB
+10dB
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2012.03 - Rev.A