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參數(shù)資料
| 型號(hào)： | MS6257U |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Gain and Attenuation Volume Controller IC One Set of Stereo Input, Low voltage Gain and Attenuation 15~-79dB |
| 中文描述： | 增益與衰減音量控制器芯片一組立體聲輸入，低電壓增益和衰減15?-79分貝 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大小： | 356K |
| 代理商： | MS6257U |
MO
SA
MS6257
GAIN AND ATTENUATION VOLUME CONTROLLER IC
REV 1
1
www.mosanalog.com.tw
Gain and Attenuation Volume Controller IC
One Set of Stereo Input, Low voltage
Gain and Attenuation 15~-79dB
FEATURES
Operation range: 2.7V~5.5V
Low power consumption
Gain/Attenuation: 15dB to –79dB at 1dB/step
Housed in 8 pin SOP package
I
2
C interface
APPLICATIONS
Multimedia system
Hi-Fi audio system
MP3, PDA
Cross-reference PT2257, PT2259
DESCRIPTION
The MS6257 is the stereo audio volume controller IC. It uses CMOS technology specially for the low voltage
application with low noise, rail-to-rail output. The MS6257 provide an I
2
C control interface with gain / attenuation
range of 15dB to –79dB, 1dB/step. The initial condition is set to be maximum attenuation –79dB and mute on mode
when the power is up.
PIN CONFIGURATION
Symbol
L-IN
L-OUT
V
SS
SDA
SCL
V
DD
R-OUT
R-IN
Pin
1
2
3
4
5
6
7
8
Description
Left channel input
Left channel output
Ground
I
2
C data input
I
2
C clock input
Positive supply voltage
Right channel output
Right channel input
7
6
5
8
2
3
4
1
MS6257
R- IN
R- OUT
V
DD
SCL
L- IN
L- OUT
V
SS
SDA
BLOCK DIAGRAM
R-IN
REF
SDA
SCL
R-OUT
L-OUT
I2C Interface
-10dB/STEP
-1dB/STEP
1dB/STEP
Serial Bus Decoder and Latches
Reference
Circuit
1dB/STEP
-1dB/STEP
-10dB/STEP
L-IN
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