TDA7419_09 Datasheet, PDF (24/40 Pages) STMicroelectronics – 3 band car audio processor

Description of the audio processor
TDA7419
4.8
4.8.1
Treble
There are two parameters programmable in the treble stage:
Attenuation
Figure 16 shows the attenuation as a function of frequency at a center frequency of 17.5 kHz.
Figure 16. Treble control @ f_C = 17.5 kHz
20
15
10
5
0
-5
- 10
- 15
- 20
10
100
1K
10K
4.8.2
Center frequency
Figure 17 shows the four possible center frequencies 10k, 12.5k, 15k and 17.5 kHz.
Figure 17. Treble center frequencies @ gain = 15 dB
20
15
10
5
0
-5
10
100
1K
10K
24/40