
ASAHI KASEI
[AK4589]
MS0339-E-00
2004/09
-
72
-
SYSTEM DESIGN
Figure 50 shows the system connection diagram. An evaluation board is available which demonstrates application
circuits, the optimum layout, power supply arrangements and measurement results.
Condition: I
2
C serial control mode
TX
1
INT1
1
AK4589
+
10u
Audio DSP
2
3
4
5
6
7
8
9
10
11
60
59
58
57
56
55
54
53
52
51
50
BOUT
TVDD
DVDD
DVSS
TEST3
MCKO1
VOUT
BICK2
LRCK2
TEST1
NC
AVSS
AVDD
VREFH
VCOM
RIN
LIN
LOUT1-
ROUT2-
ROUT2+
80
79
78
77
76
75
74
73
72
71
70
TX
0
MC
LK
VI
N
DA
U
X
2
I2
C
RX
7
CA
D1
RX
4
PVD
D
R
21
22
23
24
25
26
27
28
29
30
31
SD
A
DA
U
X
1
SD
T
I3
SD
T
I2
SD
T
I1
XT
L
1
XT
L
0
PD
N
DZ
F
2
DZ
F
1
LO
U
T
4-
0.1u
S/PDIF sources
S/PDIF out
(MPEG/AC3)
Analog 5V
Analog Ground
Digital Ground
Digital 5V
Micro
Controller
5
(S
hi
e
ld)
+
2.2u
0.1u
12
k
+
0.1u 10u
+
X’tal
0.1u
10u
C1
C1
12
13
14
15
16
69
68
67
66
65
32
33
34
35
36
49
48
47
46
45
SDTO2
UOUT
MCKO2
COUT
XTO
XTI
SC
L
CS
N
SD
T
I4
M
A
ST
ER
LO
U
T
4+
LOUT1+
ROUT1+
ROUT1-
RX0
RX1
T
EST
2
CA
D0
RX
5
RX
6
IN
T
0
MUTE
SDTO1
LRCK1
CDTO
17
18
19
20
BICK1
RO
U
T
4
+
LO
U
T
3-
LO
U
T
3+
37
38
39
40
RO
UT
4
-
LOUT2-
ROUT3-
ROUT3+
44
43
42
41
LOUT2+
RX
3
NC
RX
2
64
63
62
61
PVSS
+
3.3V to 5V
Digital
A
udi
o
D
S
P
(M
PE
G
/AC
3
)
(M
ic
ro
C
o
ntr
o
ller
)
Audio DSP
(MPEG/AC3)
Micro Controller
MU
TE
(Shield)
(S
/P
D
IF
S
our
c
e)
(S/PDIF
sources)
Micro
Controller
LPF
MUTE
LPF
MUTE
LPF
MUTE
LPF
MUTE
LPF
LPF
MU
TE
LPF
MU
TE
LPF
C2
C2
C2
C2
C2
C2
C2
C2
Figure 50. Typical Connection Diagram
Notes:
- “C1” depends on the crystal.
- “C2” is 470pF capacitor.
- AVSS, DVSS and PVSS must be connected the same analog ground plane.
- Digital signals, especially clocks, should be kept away from the R pin in order to avoid an effect to the clock jitter
performance.
- In case of coaxial input, ground of RCA connector and terminator should be connected to PVSS of the AK4589
with low impedance on PC board.