TDA7411 ST Microelectronics, TDA7411 Datasheet - Page 12

• Manufacturer Part Number: TDA7411
• Description: ADVANCED CAR SIGNAL PROCESSOR
• Manufacturer: ST Microelectronics

TDA7411
Quality Factors
Figure 6 shows the four possible quality factors 1, 1.25, 1.5 and 2.
Figure 6. Bass Quality factors @ Gain = 14dB, f
DC Mode
In this mode the DC-gain is increased by 5.1dB. 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 7. Bass normal and DC Mode @ Gain = 14dB, f
Note: In general the center frequency, Q and DC-mode can be set independently. The exception from this
rule is the mode (5/xx1111xx) where the center frequency is set to 150Hz instead of 100Hz.
12/43
15. 0
12. 5
10. 0
7. 5
5. 0
2. 5
0. 0
15. 0
12. 5
10. 0
7. 5
5. 0
2. 5
0. 0
10. 0
10. 0
100. 0
100. 0
C
= 80Hz
C
1. 0K
= 80Hz
1. 0K
10. 0K
10.0K