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參數(shù)資料
| 型號： | LC75341 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Single-Chip Volume and Tone Control System |
| 中文描述： | 單芯片音量和音調(diào)控制系統(tǒng) |
| 文件頁數(shù)： | 17/20頁 |
| 文件大小： | 295K |
| 代理商： | LC75341 |
Bass Band Circuit
This section presents the equivalent circuit and the calculations for the external capacitors and resistors used to achieve a
center frequency of 100 Hz.
Bass band equivalent circuit
Sample calculation
Specifications
Center frequency: f0 = 100 Hz
Gain at maximum boost: G = 20 dB
Let R1 = 0, R2 = 66.6 K
, and C1 = C2 = C.
(1) Determine R2 from the fact that G = 20 dB.
2R3
G
+20dB
= 20
×
LOG
10
1 + ——
R2
66000
2
×
(10 – 1)
R3
= ———————— = —————
≠
3.7
k
2 (10
G+20dB/20
– 1)
(2) Determine C from the fact that the center frequency f0 = 100 Hz.
1
f
0 = ————————
2
π
R3R2C1C2
1
1
C
= —————— = ———————————
≠
0.1
μF
2
π
f
0
R
3
R
2
2
π
×
100 66000
×
3700
(3) Determine Q.
2
R
3
Q
= ——— —1
≠
2.1
R
3
R
2
Treble band circuit
The treble band circuit provides shelving characteristics.
This section presents the equivalent circuit in boost mode and the formulas used to calculate the external component
values.
No. 6270-17/20
LC75341, 75341M
(
)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LC75341M | Single-Chip Volume and Tone Control System |
| LC75342 | Single-Chip Volume and Tone Control System |
| LC75342M | Single-Chip Volume and Tone Control System |
| LC75343 | Electronic Volume Control System on-Chip |
| LC75343M | Electronic Volume Control System on-Chip |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC75341M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Single-Chip Volume and Tone Control System |
| LC75342 | 制造商:Panasonic Industrial Company 功能描述:IC |
| LC75342M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Single-Chip Volume and Tone Control System |
| LC75342M-TLM-E | 制造商:Sony Semiconductor Solutions Division 功能描述: |
| LC75343 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Electronic Volume Control System on-Chip |
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