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参数资料
| 型号： | LC75345M |
| 厂商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分类： | 音频控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO36 |
| 封装： | 0.375 INCH, MFP-36 |
| 文件页数： | 11/22页 |
| 文件大小： | 272K |
| 代理商： | LC75345M |
Calculation of External Equalizer Constant
Bass/Super Bass Circuit
The equivalent circuit and the formula for calculating the external RC with a mean frequency of 100 Hz are shown
below.
Bass/super bass band equivalent circuit block diagram
Calculation example
Specification Mean frequency: f0 = 100 Hz
Gain during maximum boost: G = 10 dB
Using R1 = 0, R2 = 33.097 k
, and C1 = C2 = C,
We obtain R2 from G = 10 dB.
We obtain C from mean frequency f0 = 100 Hz.
We obtain Q.
No. 6868-19/22
LC75345M
C1
R1
R2
R3
C2
G
+10 dB
= 20 × LOG
10
1
+
R2
2R3
R3
=
R2
2 10G+10dB/20 –1
33097
2
× (3.162 – 1)
=≠ 7.6 K
f 0
=
R3R2C1C2
1
2
π
C
==
1
2
πf0 R3R2
1
2
π × 100 33097 × 7600
≠ 0.01 F
Q
=
R3R2
2R3
1
≠ 1.04
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LC75345M-TLM-E | 功能描述:多媒体杂项 RoHS:否 制造商:Texas Instruments 类型: 通道数量: 转换速率:540 Mbps 分辨率: 封装 / 箱体:SOIC-16 封装:Tube |
| LC75347E | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Six-Channel Single-Chip Electronic Volume Control System |
| LC75347E-E | 制造商:ON Semiconductor 功能描述:ELECTRONIC VOLUME - Trays |
| LC75347EH-UC-E | 功能描述:多媒体杂项 RoHS:否 制造商:Texas Instruments 类型: 通道数量: 转换速率:540 Mbps 分辨率: 封装 / 箱体:SOIC-16 封装:Tube |
| LC75348 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Single-Chip Electronic Volume and Tone Control System |
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