AK4220 Datasheet, PDF (15/33 Pages) Asahi Kasei Microsystems – 7:3 Audio Switch and 6:3 Video Switch

I
[AK4220]
■ Input Selector
The AK4220 have 7:3 input selectors for audio input, and 6:3 input selectors for video input. The audio input selectors are
set by ASEL12-10bits, ASEL22-20bits and ASEL32-30 bits, and the video input selectors are set by VSEL12-10bits,
VSEL22-20bits and VSEL32-30 bits.
ASEL12 bit
0
0
0
0
1
1
1
1
ASEL11 bit
0
0
1
1
0
0
1
1
ASEL10 bit
0
1
0
1
0
1
0
1
Input Selector
Off (Note: 24)
LIN1 / RIN1
LIN2 / RIN2
LIN3 / RIN3
LIN4 / RIN4
LIN5 / RIN5
LIN6 / RIN6
LIN7 / RIN7
(default)
Table 1. Audio Input Selector 1 (LOUT1/ROUT1)
ASEL22 bit
0
0
0
0
1
1
1
1
ASEL21 bit
0
0
1
1
0
0
1
1
ASEL20 bit
0
1
0
1
0
1
0
1
Input Selector
Off (Note: 24)
LIN1 / RIN1
LIN2 / RIN2
LIN3 / RIN3
LIN4 / RIN4
LIN5 / RIN5
LIN6 / RIN6
LIN7 / RIN7
(default)
Table 2. Audio Input Selector 2 (LOUT2/ROUT2)
ASEL32 bit
0
0
0
0
1
1
1
1
ASEL31 bit
0
0
1
1
0
0
1
1
ASEL30 bit
0
1
0
1
0
1
0
1
Input Selector
Off (Note: 24)
LIN1 / RIN1
LIN2 / RIN2
LIN3 / RIN3
LIN4 / RIN4
LIN5 / RIN5
LIN6 / RIN6
LIN7 / RIN7
(default)
Table 3. Audio Input Selector 3 (LOUT3/ROUT3)
Note: 24. The audio outputs become common voltage (VCOM) when the input selectors are off. If BIAS bit = “0”, the
outputs become 0V.
MS0627-E-00
- 15 -
2007/05