TDA7402 Datasheet, PDF (13/59 Pages) STMicroelectronics – CARRADIO SIGNAL PROCESSOR

1.4 Loudness
There are four parameters programmable in the loudness stage:
1.4.1 Attenuation
Figure 2 shows the attenuation as a function of frequency at f_P = 400Hz
Figure 2. Loudness Attenuation @ f_P = 400Hz.
0.0
TDA7402
-5.0
-10.0
dB
-15.0
-20.0
-25.0
10.0
100.0
1.0K
Hz
10.0K
1.4.2 Peak Frequency
Figure 3 shows the four possible peak-frequencies at 200, 400, 600 and 800HzFigure 3: Loudness Center fre-
quencies @ Attn. = 15dB
Figure 3. Loudness Center frequencies @ Attn. = 15dB.
0.0
-5.0
dB
-10.0
-15.0
-20.0
10.0
100.0
1.0K
Hz
10.0K
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