AK4223 Datasheet, PDF (14/27 Pages) Asahi Kasei Microsystems – 6:2 Audio Switch and 6:2 Video Switch

[AK4223]
■ Video Output Level Setting
VGAIN11-10 bits control the video output level of the VOUT1 pin, and VGAIN21-20 bits control the video output level
of the VOUT2 pin. (Table 9, Table 10)
VGAIN11 bit
0
0
1
1
VGAIN10 bit VOUT1 output Level VOUT1 Sync Tip Level (max)
0
+6dB
200mV
1
0dB
500mV
0
+3dB
200mV
1
-3dB
500mV
Table 9.VOUT1 Output Level Setting
(default)
VGAIN21 bit
0
0
1
1
VGAIN20 bit VOUT2 output Level VOUT2 Sync Tip Level (max)
0
+6dB
200mV
1
0dB
500mV
0
+3dB
200mV
1
-3dB
500mV
Table 10.VOUT2 Output Level Setting
(default)
VGCA14-10 bits finely tune the video output levels of VOUT1, and VGCA24-20 bits tune VOUT2. (Table 11, Table 12)
VGCA14-10 bit
VOUT1 GAIN [dB]
STEP
00000
−1.0
00001
−0.9
00010
−0.8
:
:
01010
0 (default) 0.1dB
:
:
10010
+0.8
10011
+0.9
10100
+1.0
others
Reserved
Table 11. Video Output Level (VOUT1) Fine Tuning Setting
VGCA24-20 bit
VOUT2 GAIN [dB]
STEP
00000
−1.0
00001
−0.9
00010
−0.8
:
:
01010
0 (default) 0.1dB
:
:
10010
+0.8
10011
+0.9
10100
+1.0
others
Reserved
Table 12. Video Output Level (VOUT2) Fine Tuning Setting
MS1251-E-00
14
2010/10