AK4223 Datasheet, PDF (15/27 Pages) Asahi Kasei Microsystems – 6:2 Audio Switch and 6:2 Video Switch

[AK4223]
■ Video Output Driver
VR1 and VR2 bits control the video output driver of the VOUT1 and VOUT2 pins respectively. VR1 and VR2 bits should
be set to “0” when driving 150Ω resistance.
VR1 bit
VOUT1
0
150Ω Drive
(default)
1
min. 100kΩ Drive
Table 13. VOUT1 Output Driver Setting
VR2 bit
VOUT2
0
150Ω Drive
(default)
1
min. 100kΩ Drive
Table 14. VOUT2 Output Driver Setting
■ Video Output Mute Setting
The AK4223 has a channel independent mute function of the video output. VMUTE1 and VMUTE2 bits mute (Sync tip
clamp level) VOUT1 and VOUT2 outputs respectively. (Table 15, Table 16)
VMUTE1 bit
VOUT1 Output
0
Normal Output
(default)
1
Mute
Table 15. VOUT1 Output Mute Control
VMUTE2 bit
VOUT2 Output
0
Normal Output
(default)
1
Mute
Table 16. VOUT2 Output Mute Control
MS1251-E-00
15
2010/10