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參數資料
| 型號： | LC75412WS |
| 元件分類： | 音頻控制 |
| 英文描述： | VOLUME CONTROL CIRCUIT, PQFP64 |
| 封裝： | 10 X 10 MM, SQFP-64 |
| 文件頁數： | 7/19頁 |
| 文件大小： | 179K |
| 代理商： | LC75412WS |
LC75412WS
No.A1354-15/19
F1/F3 Band Circuit
The equivalent circuit and the formula for calculating the external CR with a mean frequency of 1kHz are shown below.
F1/F3 band equivalent circuit block diagram
Calculation example
Specification Mean frequency
: f0 = 1kHz
Gain during maximum boost
: G+18dB = 18dB
Let us use R1 = 0.665k
Ω, R2 = 58.704kΩ, and C1 = C2 = C.
1) Calculate R3 with G+18dB = 18dB:
2) Calculate C with the center frequency f0 = 1kHz
3) Calculate Q:
R1
R3
C2
C1
R2
3900
2
R1
1
10
R2
R3
G/20
=
÷
=
R2)R3C1C2
(R1
2π
1
f0
+
=
()
1.789
R1
2R3
R2
R1
R3
R2)R3
(R1
1
Q
+
×
+
=
(
)
R1
2R3
R2
1
LOG
20
G
10
18dB
+
×
=
+
F
0.01μ
10
0.010
3900
39359
1000
2π
1
R2)R3
(R1
f0
2
1
C
6
×
=
×
=
+
π
=
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LC75412WS-UF-E | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LC75421 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Electronic Volume Controller for Cars |
| LC75421M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Electronic Volume Controller for Cars |
| LC75421M-MPB-E | 制造商:ON Semiconductor 功能描述:ELECTRONIC VOLUME - Ammo Pack |
| LC75421M-TLM-E | 制造商:ON Semiconductor 功能描述:ELECTRONIC VOLUME - Tape and Reel |
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