ak4589 AKM Semiconductor, Inc., ak4589 Datasheet - Page 72

• Manufacturer Part Number: ak4589
• Description: 2/8-channel Audio Codec With Dir
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
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.
Notes:
MS0339-E-00
Audio DSP
3.3V to 5V
Digital 5V
(MPEG/AC3)
- “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
- In case of coaxial input, ground of RCA connector and terminator should be connected to PVSS of the AK4589
Controller
Micro
performance.
with low impedance on PC board.
Digital
C1
10u
C1
Controller
Micro
+
+
0.1u
X’tal
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
INT1
BOUT
TVDD
DVDD
DVSS
XTO
XTI
TEST3
MCKO2
MCKO1
COUT
UOUT
SDTO2
BICK2
LRCK2
SDTO1
BICK1
LRCK1
CDTO
VOUT
S/PDIF out
Figure 50. Typical Connection Diagram
Condition: I
(MPEG/AC3)
Audio DSP
SYSTEM DESIGN
2
C serial control mode
- 72 -
AK4589
S/PDIF sources
Digital Ground
Micro Controller
Analog Ground
LPF
10u
+
0.1u
C2
5
LPF
sources)
(S/PDIF
C2
LPF
ROUT1+
ROUT2+
ROUT3+
LOUT1+
LOUT2+
ROUT1-
ROUT2-
LOUT1-
LOUT2-
VREFH
TEST1
AVDD
VCOM
ROUT3-
AVSS
C2
RX0
RX1
RIN
LIN
NC
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
C2
C2
C2
C2
C2
(Shield)
0.1u 10u
LPF
LPF
LPF
LPF
LPF
+
0.1u
MUTE
MUTE
MUTE
MUTE
MUTE
[AK4589]
Analog 5V
2.2u
2004/09
+