Manual

MAX9670/MAX9671
Low-Power Audio/Video Switch with Audio
Volume Control for Dual SCART Connectors
______________________________________________________________________________________ 33
BIT
DESCRIPTION
76543210
COMMENTS
TV_Y/CVBS_OUT TV_R/C_OUT
0 0 0 ENC_Y/CVBS_IN ENC_R/C_IN
0 0 1 ENC_Y_IN ENC_C_IN
0 1 0 VCR_Y/CVBS_IN VCR_R/C_IN
0 1 1 TV_Y/CVBS_IN
1 0 0 Not used Not used
1 0 1 Mute Mute
1 1 0 Mute Mute
Input Sources for TV Video
111
Mute (power-on
default)
Mute (power-on
default)
TV_G_OUT TV_B_OUT
0 0 ENC_G_IN ENC_B_IN
0 1 VCR_G_IN VCR_B_IN
1 0 Mute Mute
Input Sources for TV_G_OUT and TV_B_OUT
11
Mute (power-on
default)
Mute (power-on
default)
Table 14. Register 06H: TV Video Input Control
BIT
DESCRIPTION
76543210
COMMENTS
0 0 Low (< 2V) internal source
01
Medium (4.5V to 7V); external SCART
source with 16:9 aspect ratio
1 0 High impedance (power-on default)
Set TV Slow Switching
11
High (> 9.5V); external SCART source
with 4:3 aspect ratio
0 0 GNDVID (power-on default)
0 1 Not used
1 0 Same level as VCR_FB_IN
Set TV Fast Switching
11 V
VID
Table 15. Register 07H: TV Video Output Control