MS6821 datasheet(22/29 Pages) MOSA

22 / 29 page

MOSA

MS6821

4 Stereo inputs / 2W PA output integrated Audio DAC and Volume Control

REV 3

22/29

www.mosanalog.com

For BTL mode only

Volume Down To Mute

Input Channels Mute On

[ Attenuation and Mute ]

Code: Lch 00111111 (3Fh)

Rch 01111111 (7Fh)

Power Off

Disconnect VDD

VDD will be fell down to 0V

Power Off

Power On

VDD = Supply voltage

Activating

Power Down

(Shut Down)

Power Down All The Devices

[ Power Down Mode ]

Code: 11011111 (DFh)

Keep All The Digital Interface

Signals Unchanged

Disable Power Down

[ Power Down Mode ]

Code: 11000000 (C0h)

Wait 0.5 sec

Setting Input Gain Is Fixed

[ Input Gain ]

Code: Lch 100xxx00

Rch 101xxx00

Power Down All The Devices

[ Power Down Mode ]

Code: 11011111 (DFh)

Volume Down To Mute

Input Channels Mute On

[ Attenuation and Mute ]

Code: Lch 00111111 (3Fh)

Rch 01111111 (7Fh)

Mute Off And Volume Up/Down

Step By Step

[ Attenuation and Mute ]

Code: Lch 00xxxxxx

Rch 01xxxxxx

Pull Down CAP Pin To Ground

[ Power Down Mode ]

Code: 11000001 (C1h)

Wait 0.1 sec

Default Status

[Attenuation & Mute]

Mute on (max attenuation)

[ Input Selector & Input Gain ]

L-ch1, R-ch1

0dB

[ Power Down Mode ]

All power down status

[ Output Mode & Mixer & Format ]

BTL mode

Inputs not mixed with DAC signal

RJF format

All the Digital Interface Signals

Pull Low

I2C pull low

Audio inputs pull low

(BCK, WS, DATA)

VDD = GND

Pull Down CAP Pin To Ground

[ Power Down Mode ]

Code: 11000001 (C1h)

Wait 0.1 sec

All the Digital Interface Signals

Pull Low

I2C pull low

Audio inputs pull low

(BCK, WS, DATA)

MS6821 Datasheet(PDF) 22 Page - MOSA ELECTRONICS

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