TDA7415CB Datasheet, PDF (24/50 Pages) STMicroelectronics – Car radio multimedia signal processor

Description of the audio processor
TDA7415CB
5.2.4
Room EQ filter
There are three parameters programmable in the room-EQ stage.
1. Control Range: Figure 13 shows the control range in the frequency domain at 200Hz
center frequency. The filter has intentional non-uniform attenuation steps. These are
1dB, 2dB, 3dB, 4dB, 5.5dB, 7dB and 9dB.
Figure 13. Room-EQ control range; f_C= 200Hz, Q= 1.0
2. Notch frequency: Figure 14 shows the four selectable notch frequencies at a gain of
15dB
Figure 14. Room-EQ notch frequencies; attenuation= -7dB, Q= 1.0.
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