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LC75421 데이터시트(PDF) 17 Page - Sanyo Semicon Device

부품명 LC75421
상세설명  Electronic Volume Controller for Cars
PDF  24 Pages
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제조업체  SANYO [Sanyo Semicon Device]
홈페이지  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LC75421 데이터시트(HTML) 17 Page - Sanyo Semicon Device

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No. 6866-17/24
LC75421M
• Calculation example 2
Specification Set frequency: f = 10000 Hz
Gain during maximum boost: G + 11.9 dB = 11.9 dB
Let us use R1 = 11.030 k
Ω and R2 = 45.054 kΩ.
The above constants are inserted in the following formula.
R2
R12
+ (1 / ωC)2
C
=
R2
)2 – R12
1
2
πf
1011.9/20 – 1
(
=
1
2
π10000
45054
3.94–1
≠ 1500(pF)
(
)2 – 110302
G
= 20 × LOG
10
1
+
Setting
f = 10 kHz
f = 1 kHz
11.9 dB
11.92
0.00
10.2 dB
10.64
0.00
8.5 dB
9.17
0.00
6.8 dB
7.52
0.00
5.1 dB
5.74
0.00
3.4 dB
3.88
0.00
1.7 dB
1.96
0.00
Simulation Results



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