TDA7402 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TDA7402' PDF : 69 Pages View PDF
Audioprocessor part
TDA7402
3.7.3
Quality factors
Figure 11 shows the four possible quality factors 1, 1.25, 1.5 and 2.
Figure 11. Bass quality factors @ Gain = 14dB, fC = 80Hz
15.0
12.5
10.0
7.5
Obsolete Product(s) - Obsolete Product(s) 3.7.4
5.0
2.5
0.0
10.0
100.0
1.0K
10.0K
DC mode
In this mode the DC-gain is increased by 4.4dB. 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 12. Bass normal and DC Mode @ Gain = 14dB, fC = 80Hz
15.0
12.5
10.0
7.5
5.0
2.5
Note:
0.0
10.0
100.0
1.0K
10.0K
The center frequency, Q and DC-mode can be set fully independently.
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