MS6821
MOSA
APPLICATION INFORMATION
4 Stereo inputs / 2W PA output integrated Audio DAC and Volume Control
A base application circuit
MS6821
21
19
2.4~5.5V
Supply
V
DD
SS
PVDDL
2.4~5.5V
PowerꢀAmplifierꢀSupply
1uF
1uF
1uF
0.1uF
4.7uF
8
3
16
10
V
PVSSL
PVSSR
CAP
13
PVDDR
27
28
SCL
SDA
MCU
VDD
10uF
15
14
2
1
100k
BCK
WS
DACL
DACR
100k
Audio
Decoder
MCU
HP_sense
28
1uF
10uF
DATA
10uF
100uF
25
24
23
22
LIN1
LIN2
LIN3
LIN4
20
18
OUTLꢁ
OUTL+
Lꢀchannel
Rꢀchannel
RL
8Ω
1k
HeadphoneꢀJack
4
5
6
7
100uF
RIN1
RIN2
RIN3
RIN4
9
OUTRꢁ
OUTR+
RL
8Ω
1k
11
10uF
ꢀ
ꢀ
ꢀ
ꢀ
Using LINE_IN function -- Built-in DAC power down
Thereꢀareꢀtwoꢀfunctionsꢀatꢀpin14ꢀandꢀpin15,ꢀoneꢀisꢀbuiltꢂinꢀDACꢀoutputꢀchannel,ꢀandꢀtheꢀotherꢀisꢀLINE_IN.ꢀ
TheꢀDACꢀmustꢀbeꢀpowerꢀdownꢀifꢀtheꢀtwoꢀpinsꢀareꢀoperatedꢀinꢀLINE_INꢀfunction.ꢀ
ꢀ
LIN1
LIN2
Attenuation
&
Mixer
Mute
LIN3
LIN4
Lꢁchꢀselector
&ꢀGain
Rꢁchꢀselector
&ꢀGain
RIN4
RIN3
RIN2
RIN1
Attenuation
&
Mute
Mixer
16ꢁbitꢀDAC
15
14
LINE_INR
LINE_INL
Audioꢀsignal
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
REVꢀ 1.0
ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ 21ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ ꢀ www.mosanalog.comꢀ
MOSA [ MOSA ELECTRONICS ]
