TDA7404DTR Datasheet, PDF (19/35 Pages) STMicroelectronics – Car radio signal processor

TDA7404
Description of functionality
4.7.4
DC mode
In this mode the DC-gain is increased by 4.4 dB. In addition the programmed center
frequency and quality factor is decreased by 25 % which can be used to reach alternative
center frequencies or quality factors.
Figure 13. Bass normal and DC mode @ gain = 14 dB, f_C = 80 Hz
15.0
12.5
10.0
7.5
5.0
2.5
0.0
10.0
100.0
1.0K
10.0K
1. The center frequency, Q and DC mode can be set fully independently.
19/35