3.0 PC Board Considerations
CX25870/871
3.6 Applications Information
Flicker-Free Video Encoder with Ultrascale Technology
The autoconfiguration modes for the CX25870/871 that pertain to the desktop
resolutions are summarized in Figures 3-5 through 3-12.
Figure 3-7. CX25870/871 Autoconfiguration Modes for 640x480 RGB In, NTSC Out
Desktop Resolutions
(# of Logical Clicks)
VOC
+1
640 x 480 RGB in, NTSC out
Autoconfig.
Mode #0
13.78 %
13.58 %
0
Autoconfig.
Mode #32
–1
18.34 %
19.34 %
–1
0
+1
HOC
Decrease Horiz.
Horizontally Constant
Increase Horiz.
100381_077
Figure 3-8. CX25870/871 Autoconfiguration Modes for 640x480 RGB In, PAL-BDGHI Out
Desktop Resolutions
(# of Logical Clicks)
VOC
+1
640 x 480 RGB in, PAL-BDGHI out
Autoconfig.
Mode #17
13.63 %
13.19 %
Autoconfig.
Mode #1
0
16.55 %
16.66 %
Autoconfig.
Mode #33
–1
20.27 %
19.79 %
–1
0
+1
HOC
(# of Logical Clicks)
100381_078
3-22
Conexant
100381B
CONEXANT [ CONEXANT SYSTEMS, INC ]
