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參數資料
| 型號： | LC75341M |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO24 |
| 封裝： | MFP-24 |
| 文件頁數： | 9/20頁 |
| 文件大小： | 295K |
| 代理商： | LC75341M |
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.
R2
G+20dB = 20 × LOG10 1 + ——
2R3
R2
66000
R3 = ———————— = —————
≠ 3.7 k
2 (10G+20dB/20 – 1)
2
× (10 – 1)
(2) Determine C from the fact that the center frequency f0 = 100 Hz.
1
f 0 = ————————
2
π R3R2C1C2
11
C = —————— = ———————————
≠ 0.1 F
2
πf 0 R3R22π × 100 66000 × 3700
(3) Determine Q.
R3R2
1
Q = ——— ———
≠ 2.1
2R3
R3R2
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
()
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| LC75343M | 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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