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參數(shù)資料
| 型號(hào)： | LV1115 |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP24 |
| 封裝： | DIP-24 |
| 文件頁數(shù)： | 3/15頁 |
| 文件大小： | 317K |
| 代理商： | LV1115 |
LV1115/1115M
No.8263-11/15
Treble / Bass Band Block Equivalent Circuit Diagram
Tone Circuit Constant Calculation Examples
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 = 24000Hz
Gain during maximum boost: G+18dB = 17.5dB
Let us use R1 = 6.51k and R2 = 45.19k
Ω
The above constants are inserted in the following formula
G = 20 × Log10 1+
C =
=
≈2700 (pF)
+
-
Total=51.7k
Ω
SW2
SW1
SW3
SW4
R1=10.633k
Ω
R2=8.446k
Ω
R3=6.709k
Ω
R4=5.329k
Ω
R5=4.233k
Ω
±2dB
±4dB
±6dB
±8dB
±10dB
±12dB
±14dB
±16dB
±18dB
±2dB
±4dB
±6dB
±8dB
±10dB
±12dB
±14dB
±16dB
±18dB
±20dB
R6=3.363k
Ω
R7=2.671k
Ω
R8=2.122k
Ω
R9=1.665k
Ω
R10=6.510k
Ω
0dB
+
-
Total=66.7k
Ω
SW2
SW1
SW3
SW4
R1=15.220k
Ω
R2=12.089k
Ω
R3=9.603k
Ω
R4=7.628k
Ω
R5=6.059k
Ω
R6=4.813k
Ω
R7=3.823k
Ω
R8=3.037k
Ω
R9=2.412k
Ω
R10=1.916k
Ω
0dB
R11=100
Ω
R12=100
Ω
L-TC1
L-BC2
L-BC1
From L-Input Block
To L-OUT Block
During boost, SW1 and SW3 are ON, during cut, SW2 and SW4 are ON, when 0dB, 0dBSW and SW2 and SW3 are ON.
1
R2
2
10G/20-1
2πf
-R12
1
45190
2
7.50 - 1
2π24000
- 65102
R2
R12+(1/
ω C)
2
+
-
R2
R1
C
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