MS6258G 데이터 시트보기 (PDF) - MOSA ELECTRONICS

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MS6258G

Gain and Attenuation Volume Controller IC 4 Sets of Stereo Input, Low voltage Gain and Attenuation 15~-79dB

MOSA ELECTRONICS 

MOSA

APPLICATION INFORMATION

Basic application example

MS6258

MCU

8 SDA

9 SCL

Stereo Signal 1

Stereo Signal 2

Stereo Signal 3

Stereo Signal 4

10uF

10uF

10uF

10uF

10uF

10uF

10uF

10uF

5 L-IN1

12 R-IN1

4 L-IN2

13 R-IN2

3 L-IN3

14 R-IN3

2 L-IN4

15 R-IN4

Basic application flowchart

Procedure Of Power On

MS6258

Gain And Attenuation Volume Controller IC

VDD 10

VSS 7

0.1uF

47uF

Supply

2.7~5V

A.O 1

Hi : Addr 10001000B

Lo: Addr 10001100B

VREF 16

10uF

L-OUT 6

10uF

10k

R-OUT 11

10uF

10k

Power

Amplifier

Procedure Of Power Off

Power on

VDD = 5V

Initial Conditions

function off (-79dB)

mute on

Pop Noise Free

wait 1 sec

Volume Control

volume down to -79 dB

step by step

Enable Mute Function

mute on

Pop Noise Free

power off preparation

wait 0.5 sec

Disable Mute Function

mute off

Power off

VDD = 0V

Volume Control

volume up/down

step by step

1. The initial condition is –79dB and mute on when power on.

2. In order to prevent pop noise when power on, please wait 1 sec to transmit I2C command.

REV 1

10

www.mosanalog.com.tw

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