參數(shù)資料
型號: TDA7406T
廠商: 意法半導體
英文描述: CAR RADIO SIGNAL PROCESSOR
中文描述: 汽車無線電信號處理器
文件頁數(shù): 11/49頁
文件大小: 823K
代理商: TDA7406T
11/49
TDA7406T
2.3 Loudness
There are four parameters programmable in the loudness stage:
I
Attenuation:
0 to -19dB attenuation in 1dB steps vs. frequency (see the response at f
P
= 400Hz in Figure 2).
I
Peak Frequency:
Four programmable peak frequencies: 200,400,600 and 800Hz (see Figure 3).
I
Filter Order:
First or second order frequency response (see Figure 4).
I
Flat mode:
Selectable flat-mode. In flat mode the loudness stage works as a 0dB to -19dB attenuator.
Figure 2. Loudness Attenuation @ f
P
= 400Hz.
Figure 3. Loudness Center frequencies @ Attn. = 15dB
dB
Hz
-25.0
-20.0
-15.0
-10.0
-5.0
0.0
10.0
100.0
1.0K
10.0K
dB
Hz
-20.0
-15.0
-10.0
-5.0
0.0
10.0
100.0
1.0K
10.0K
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