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參數資料
| 型號： | LC75342 |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDIP30 |
| 封裝： | SDIP-30 |
| 文件頁數： | 10/20頁 |
| 文件大小： | 306K |
| 代理商： | LC75342 |
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
No. 6271-18/20
LC75342, 75342M
()
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相關代理商/技術參數 |
參數描述 |
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| 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 |
| LC75343M-MPB-E | 制造商:ON Semiconductor 功能描述:ELECTRONIC VOLUME - Ammo Pack 制造商:ON Semiconductor 功能描述:Multimedia Misc 制造商:ON Semiconductor 功能描述:FNFLD / ELECTRONIC VOLUME |
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