參數(shù)資料
型號： TDA7405TR
廠商： STMICROELECTRONICS
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP44
封裝： 10 X 10 MM, ROHS COMPLIANT, TQFP-44
文件頁數(shù)： 8/58頁
文件大小： 762K
代理商： TDA7405TR
TDA7405
16/57
5.7.4 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 14. Bass normal and DC Mode @ Gain = 14dB, fC = 80Hz
Note: The center frequency, Q and DC-mode can be set fully independently.
5.8 Treble
There are two parameters programmable in the treble stage:
5.8.1 Attenuation
Figure 15 shows the attenuation as a function of frequency at a center frequency of 17.5kHz.
Figure 15. Treble Control @ fC = 17.5kHz
0.0
2.5
5.0
7.5
10.0
12.5
15.0
10.0
100.0
1.0K
10.0K
-15.0
-10.0
-5.0
0.0
5.0
10.0
15.0
10.0
100.0
1.0K
10.0K
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