TDA7405 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TDA7405' PDF : 57 Pages View PDF
TDA7405
5.4 Loudness
There are four parameters programmable in the loudness stage:
5.4.1 Attenuation
Figure 6 shows the attenuation as a function of frequency at fP = 400Hz.
Figure 6. Loudness Attenuation @ fP = 400Hz
0.0
-5.0
-10.0
dB
-15.0
-20.0
-25.0
10.0
100.0
1.0K
Hz
10.0K
5.4.2 Peak Frequency
Figure 7 shows the four possible peak-frequencies at 200, 400, 600 and 800Hz
Figure 7. Loudness Center frequencies @ Attn. = 15dB
0.0
-5.0
dB
-10.0
-15.0
-20.0
10.0
12/57
100.0
1.0K
Hz
10.0K
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