参数资料
型号: LC75281E
厂商: SANYO SEMICONDUCTOR CO LTD
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: 7/10页
文件大小: 85K
代理商: LC75281E
LC75281E
No.5913-6/10
(1) Center frequency (f0)
(Example 1)
Band
f1
f2
f3
f4
f5
f6
f7
f8
f9
f10
f11
External
capacitor (
μF)
Low
3.15
40
50
63
80
100
125
160
200
250
315
0.047
Low Mid
160
200
250
315
400
500
630
800
1k
1.25k
1.6k
0.0094
High Mid
630
800
1k
1.25k
1.6k
2k
2.5k
3.15k
4k
5k
6.3k
0.00235
High
1.6k
2k
2.5k
3.15k
4k
5k
6.3k
8k
10k
12.5k
16k
0.00094
External Capacitor Calculations
Figure a shows the LC75281E internal f0 control circuit. The center frequency f0 can be set to one of 11 frequencies in
1/3 octave steps by switching the resistors in the figure.
The value of an external capacitor is determined by substituting the desired center frequency in the following formula.
Cf =
f0 max: Corresponds to 315Hz in the low band row in the preceding table.
371
Ω
RON=3k
Ω
1249
Ω
1265
Ω
Cf
7k
Ω
1247
Ω
1262
Ω
972
Ω
792
Ω
666
Ω
494
Ω
366
Ω
1015
Ω
301
Ω
Figure a
Rb//Rf
Ra + (Rb//Rf)
1
2
π Rf f0 max
Cf
Ra
Rf
Equivalent Circuit for Cf calculation
Rb
相关PDF资料
PDF描述
LC7533 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDIP16
LC75341 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDIP24
LC75341M 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO24
LC75342M 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO30
LC75342 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDIP30
相关代理商/技术参数
参数描述
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:
LC7532M 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC
LC7533 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:3V Electronic Volume Control