AK4254 Datasheet, PDF (18/22 Pages) Asahi Kasei Microsystems – Capacitor-less Video Amp with 7:2 Video Switch

ASAHI KASEI
[AK4254]
SYSTEM DESIGN
Figure 15∼Figure 17 show the system connection diagram. An evaluation board (AKD4254) is available in order to allow
an easy study on the layout of a surrounding circuit.
Video out
Power Supply 3V
Video in
1 CVDD1
+
1u
2 CP1
3 CN1
1u ⁺
75
4 CVSS1
5 CVEE1
6 VOUT1
+
10u
7
0.1u
8
AVDD
AVSS
9 TEST
0.1u
0.1u
0.1u
0.1u
0.1u
10 P/S
11 VIN1
12 VIN2
13 VIN3
14 VIN4
15 VIN5
CVDD2 30
CP2 29
CN2 28
CVSS2 27
CVEE2 26
AK4254 ^{VOUT2 25}
PDN 24
SEL22 23
SEL21 22
SEL20 21
SEL12 20
SEL11 19
SEL10 18
VIN7 17
VIN6 16
+
1u
+ _1u
75
Video out
DSP or μP
0.1u
0.1u
Video in
Figure 15. Typical Connection Diagram (Parallel Control Mode)
Video out
Power Supply 3V
Video in
1 CVDD1
+
1u
2 CP1
3 CN1
1u ⁺
75
4 CVSS1
5 CVEE1
6 VOUT1
+
10u
7
0.1u
8
AVDD
AVSS
9 TEST
0.1u
0.1u
0.1u
0.1u
0.1u
10 P/S
11 VIN1
12 VIN2
13 VIN3
14 VIN4
15 VIN5
CVDD2 30
CP2 29
CN2 28
CVSS2 27
CVEE2 26
AK4254 ^{VOUT2 25}
PDN 24
I2C 23
CDTI 22
CCLK 21
CSN 20
CAD1 19
CAD0 18
VIN7 17
VIN6 16
+
1u
+ _1u
75
Video out
DSP or μP
0.1u
0.1u
Video in
Figure 16. Typical Connection Diagram (Serial Control Mode: 3-wire Serial mode)
MS0586-E-01
- 18 -
2007/08