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SC2256BS Datasheet(PDF) 1 Page - SHENZHEN FUMAN ELECTRONICS CO., LTD.

Part # SC2256BS
Description  Electronic volume control circuit
PDF  8 Pages
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Manufacturer  FUMAN [SHENZHEN FUMAN ELECTRONICS CO., LTD.]
Direct Link  http://www.superchip.cn
Logo FUMAN - SHENZHEN FUMAN ELECTRONICS CO., LTD.

SC2256BS Datasheet(HTML) 1 Page - SHENZHEN FUMAN ELECTRONICS CO., LTD.

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深圳市富满电子有限公司
SHENZHEN FUMAN ELECTRONICS CO., LTD.
SC2256B(文件编号：S&CIC0582)
电子音量控制电路
第 1 页 共 8 页
一、
描述
SC2256B 和 SC2256BS 是为音频设备的音量控制电子化而设计的一块专用集成电路。该电路采用
CMOS 工艺制作。
二、
主要特点
 通过提升、衰降输入端，可在 0dB 到-78dB 范围进行衰减控制。
 该电路有 20dB 的抽头端子以构成等响度电路。
 采用多晶电阻，以实现低失真、高性能的音频系统。
 有一内置的直流输出（7 级）可构成音量电平表。
 在待机状态时的电流消耗很小，此时仍可保持音量电平数据。
 封装型式为 DIP16 或 SOP16。
三、
产品规格分类
SC2256B
DIP-16 封装
SC2256BS
SOP-16 封装
四、
管脚排列
1
2
3
4
5
6
A
B
C
D
6
5
4
3
2
1
D
C
B
A
Title
Num ber
Revision
Size
B
Date:
4-Nov-2004
Sheet
of
File:
E:\规格图\xie\SC9235.Ddb
Drawn By :
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
VSS
OUT-1
IN-1
TP-1
GND-1
UP
DN
OSC
VDD
OUT-2
IN-2
TP-2
GND-2
DC-OUT
INH
INT
五、
内部框图


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