参数资料
型号: TDA7412
厂商: STMICROELECTRONICS
元件分类: 音频控制
英文描述: 1 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP44
封装: 10 X 10 MM, 1.40 MM HEIGHT, TQFP-44
文件页数: 5/56页
文件大小: 716K
代理商: TDA7412
13/56
TDA7412
1.4 Loudness
There are four parameters programmable in the loudness stage:
1.4.1 Attenuation
Figure 2 shows the attenuation as a function of frequency at fP = 400Hz
Figure 2. Loudness Attenuation @ fP = 400Hz.
1.4.2 Peak Frequency
Figure 3 shows the four possible peak-frequencies at 200, 400, 600 and 800HzFigure 3: Loudness Center fre-
quencies @ Attn. = 15dB
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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