AK4685 AKM [Asahi Kasei Microsystems], AK4685 Datasheet - Page 48

• Manufacturer Part Number: AK4685
• Description: Multi-channel CODEC with Differential Analog I/O
• Manufacturer: AKM [Asahi Kasei Microsystems]

Figure 28
circuits, the optimum layout, power supply arrangements and measurement results.
Notes:
MS1106-E-00
Analog in2
- VSS1-7 must be connected the same analog ground plane.
shows the system connection diagram. An evaluation board is available which demonstrates application
3.3V Digital
5V Digital
Ri
Ri
Ri
Ri
10u 0.1u
10u
Rf
Rf
Rf
+
+
Rf
0.1u
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
RVCOM1
RIN1+
RIN1-
RAMPO1
LAMPO1
LIN1-
LIN1+
LVCOM1
LRCKB
BICKB
SDTOB2
SDTOB1
MCKO
TVDD
VSS7
DVDD1
Figure 28. Typical Connection Diagram (Master Mode)
0.1u
10u
X’tal
+
10u
C
+
Audio DSP2
Ri
Rf
AK4685
SYSTEM DESIGN
Analog in1
Rf
Ri
Ri
Rf
+
10u
0.1u
- 48 -
Rf
Ri
Controller
0. 1u
Micro
10u
+
Headphone
6.8
6.8
+
MCLKA 19
ROUT+ 24
10u
AVDD2 22
LRCKA 20
0.1u
LOUT+ 26
ROUT- 25
BICKA 18
LOUT- 27
SDTIA 17
PVDD 31
VSS4 32
VSS3 23
SGL 21
CN 30
NC 28
CP 29
2.2u
0.1u
0.1u
10u
2.2u
+
10u
+
Diff to single
Diff to single
circuit
circuit
3.3V Analog
5V Analog
circuit
circuit
Mute
Mute
[AK4685]
Analog out
2009/08