- 您现在的位置：买卖IC网 > PDF目录30734 > LC7527E 2 CHANNEL(S), EQUALIZER CIRCUIT, PQFP64 PDF资料下载
参数资料
| 型号： | LC7527E |
| 元件分类： | 音频控制 |
| 英文描述： | 2 CHANNEL(S), EQUALIZER CIRCUIT, PQFP64 |
| 封装： | QFP-64 |
| 文件页数： | 11/11页 |
| 文件大小： | 244K |
| 代理商： | LC7527E |
External Component Value Calculations
The external capacitors required for each band in the LC7527E are the structural elements in semiconductor inductors
(simulated inductors). The remainder of this section presents the equivalent circuits and the formulas used to determine
the center frequencies.
1. Semiconductor Inductor Equivalent Circuit
The LC7527E provides circuits with differing constants for the low and high bands.
2. Calculation Example
Specifications: 1) Center frequency: Fo = 63 Hz
2) Q at maximum boost: Q+12 dB = 1.05
Derive the sharpness Qo of the semiconductor inductor itself.
Qo =
× Q
+12 dB ≈ 4.064
See the internal equivalent circuit figure for R4.
Derive C1.
C1 = 1/2
πFoR1Qo ≠ 0.953 (F)
Derive C2.
C2 = Qo/2
πFoR2 ≠ 0.034 (F)
3. Sample Values for C1 and C2
(R1 + R4)
R1
No. 4466-9/11
LC7527E
Center
C1
C2
frequency
(F)
Fo (Hz)
63
0.953
0.034
160
0.377
0.014
400
0.151
5390 p
1000
0.060
2156 p
2500
0.024
862 p
6300
9563 p
3422 p
16000
3765 p
1348 p
相关PDF资料 |
PDF描述 |
|---|---|
| LC75281E | 2 CHANNEL(S), EQUALIZER CIRCUIT, PQFP64 |
| LC75281E | 2 CHANNEL(S), EQUALIZER CIRCUIT, PQFP64 |
| LC7533 | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDIP16 |
| LC75341 | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDIP24 |
| LC75341M | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LC75281 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Parametric Equalizer System |
| LC75281E | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Parametric Equalizer System |
| LC75281E-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 |
| LC7530 | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
| LC7531 | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
发布紧急采购，3分钟左右您将得到回复。