TDA7405_04 STMICROELECTRONICS [STMicroelectronics], TDA7405_04 Datasheet - Page 12

• Manufacturer Part Number: TDA7405_04
• Description: EQUALIZER CARRADIO SIGNAL PROCESSOR
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

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
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
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dB
dB
-10.0
-15.0
-20.0
-10.0
-15.0
-20.0
-25.0
-5.0
0.0
-5.0
0.0
10.0
10.0
100.0
100.0
Hz
Hz
1.0K
1.0K
10.0K
10.0K