AK4220 Datasheet, PDF (27/33 Pages) Asahi Kasei Microsystems – 7:3 Audio Switch and 6:3 Video Switch

I
[AK4220]
Addr
02H
Register Name
Input Selector 2
R/W
Default
D7
0
R/W
0
D6
VSEL22
R/W
0
D5
VSEL21
R/W
0
D4
VSEL20
R/W
0
D3
0
R/W
0
D2
ASEL22
R/W
0
D1
ASEL21
R/W
0
D0
ASEL20
R/W
0
ASEL22-20: Audio Input Selector 2
Refer Table 2
VSEL22-20: Video Input Selector 2
Refer Table 5
Addr
03H
Register Name
Input Selector 3
R/W
Default
D7
0
R/W
0
D6
VSEL32
R/W
0
D5
VSEL31
R/W
0
D4
VSEL30
R/W
0
D3
0
R/W
0
D2
ASEL32
R/W
0
D1
ASEL31
R/W
0
D0
ASEL30
R/W
0
ASEL32-30: Audio Input Selector 3
Refer Table 3
VSEL32-30: Video Input Selector 3
Refer Table 6
Addr
04H
Register Name
Detection Control1
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
0 VDSEL2 VDSEL1 VDSEL0 0
0
0
0
R/W R/W R/W R/W R/W R/W R/W R/W
0
0
0
0
0
0
0
0
VDSEL2-0: Video Synchronization Signal Detection Selector
Refer Table 8
Addr
05H
Register Name
Detection Control2
R/W
Default
D7
RTM1
R/W
0
D6
RTM0
R/W
1
D5
ACT1
R/W
0
D4
ACT0
R/W
0
ADSEL2-0: Audio Input Detection Selector
Refer Table 7
ACT1-0: Audio Input Continuous Detection times Setting
Refer Table 10
RTM1-0: Audio Input Detection Recovery time Setting
Refer Table 11
D3
D2
D1
D0
0 ADSEL2 ADSEL1 ADSEL0
R/W R/W R/W R/W
0
0
0
0
MS0627-E-00
- 27 -
2007/05