参数资料
型号: LC75411WS
元件分类: 音频控制
英文描述: 2 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP48
封装: SQFP-48
文件页数: 18/33页
文件大小: 669K
代理商: LC75411WS
Treble Band Circuit
The shelving characteristics for the treble band can be obtained.
The equivalent circuit and the calculation formula during boost are shown below.
No. 6928-25/33
LC75411ES, 75411WS
Calculation example
Specification Setting frequency: f = 26000 Hz
Gain during maximum boost: G = 12 dB
Let us use R1 = 12.840 k
and R2 = 38.861 k
The above constants are inserted in the following formula.
R1
R2
C
GLOG
R2
RC
=
×
+
20
1
11
10
22
(/
)
ω
C
f
R2
R1
G
=
1
2
10
1
20
22
π ()
/
2700(pF)
12840
1
981
.
3
38861
26000
2
1
2
×
=
π
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