TDA7404DTR Datasheet, PDF (20/35 Pages) STMicroelectronics – Car radio signal processor

Description of functionality
TDA7404
4.8
4.8.1
4.8.2
Treble
There are two parameters programmable in the treble stage:
Attenuation
Figure 14 shows the attenuation as a function of frequency at a center frequency of
17.5 kHz.
Figure 14. Treble control @ f_C = 17.5kHz
20
15
10
5
0
-5
- 10
- 15
- 20
10
100
1K
10K
Center frequency
Figure 15 shows the four possible center frequencies 10 k, 12.5 k, 15 k and 17.5 kHz.
Figure 15. Treble center frequencies @ Gain = 15 dB
20
15
10
5
0
-5
10
100
1K
10K
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