參數(shù)資料
型號(hào): LC75421M
元件分類: 音頻控制
英文描述: 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO36
封裝: 0.375 INCH, MFP-36
文件頁(yè)數(shù): 8/24頁(yè)
文件大?。?/td> 392K
代理商: LC75421M
Treble Band Circuit
The shelving characteristics can be obtained for the treble band.
The equivalent circuit and calculation formula during boost are indicated below.
Calculation example 1
Specification Set frequency: f = 10000 Hz
Gain during maximum boost: G + 14 dB = 14 dB
Let us use R1 = 11.030 k
and R2 = 45.054 k.
The above constants are inserted in the following formula.
No. 6866-16/24
LC75421M
C
R1
R2
C
=
R2
)2 – R12
1
2
πf
10G/20 – 1
(
=
1
2
π10000
45054
5.01–1
≠ 6800(pF)
(
)2 – 110302
R2
R12
+ (1 / ωC)2
G
= 20 × LOG
10
1
+
Simulation Results
Setting
f = 10 kHz
f = 1 kHz
14 dB
13.95
7.42
12 dB
11.98
6.96
10 dB
10
6.34
8 dB
8
5.5
6 dB
6
4.43
4 dB
4
3.13
2 dB
2
1.64
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