AK4220 Datasheet, PDF (29/33 Pages) Asahi Kasei Microsystems – 7:3 Audio Switch and 6:3 Video Switch

I
[AK4220]
SYSTEM DESIGN
Figure 29 shows the system connection diagram. An evaluation board [AKD4220] is available which demonstrates the
optimum layout, power supply arrangements and measurement results.
Digital Ground
Analog Ground
Audio in
Micro
Controller
Digital 3.3V ^10k
1 RIN+7
2 PDN
3 CAD1
4 SCL
5 SDA
6 CAD0
7 INT
8 Q0
9 Q1
10 Q2
11 Q3
10u 0.1u
+
12 Q4
13 DVDD
14 DVSS
15 VOUT1
16 VFB1
AK4220
+
+
GND2 48
RIN+1 47
LIN+1 46
GND1 45
ROUT3 44
LOUT3 43
ROUT2 42
LOUT2 41
ROUT1 40
LOUT1 39
0.47u
0.47u
0.47u
0.47u
10u
300
10u
300
10u
300
10u
300
10u
300
10u
300
AVSS 38
VCOM 37
MUTET 36
R 35
+
0.1u 2.2u
12k
AVDD 34
+
0.1u 10u
VIN6 33
Audio in
Audio out
1u
Analog 5V
Video out
Video in
Analog 5V
Figure 29. Typical Connection Diagram
MS0627-E-00
- 29 -
2007/05