cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 10

• Manufacturer Part Number: cx25870
• Description: Video Encoder With Adaptive Flicker Filtering And Hdtv Output
• Manufacturer: Conexant Systems, Inc.

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List of Figures
Figure 1-37.
Figure 3-1.
Figure 3-2.
Figure 3-3.
Figure 3-4.
Figure 3-5.
Figure 3-6.
Figure 3-7.
Figure 3-8.
Figure 3-9.
Figure 3-10.
Figure 3-11.
Figure 3-12.
Figure 3-13.
Figure 3-14.
Figure 3-15.
Figure 3-16.
Figure 4-1.
Figure 4-2.
Figure 4-3.
Figure 4-4.
Figure 4-5.
Figure 4-6.
Figure 4-7.
Figure 4-8.
Figure 4-9.
Figure 4-10.
Figure 4-11.
Figure A-1.
Figure A-2.
Figure A-3.
Figure A-4.
Filterless DAC Outputs for VGA (RGB)—DAC Output Operation . . . . . . . . . . . . . . . . . . . . 1-86
Power Plane Illustration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Connection Diagram for Output Filters and Other Key Passive Components/Standard Definition
TV Out Only 3-3
Connection Diagram for Output Filters and Other Key Passive Components/Standard and HDTV
Out 3-4
CX25870/871 3.3 V Recommended Layout for Connection with 3.3 V Master De-
vice
CX25870/871 3.3 V/1.8 V Recommended Layout for Connection with 1.8 V Master De-
vice
Conexant Recommended GUI for CX25870/871 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
CX25870/871 Autoconfiguration Modes for 640x480 RGB in, NTSC Out Desktop Resolutions
CX25870/871 Autoconfiguration Modes for 40x480 RGB In, PAL-BDGHI Out Desktop Resolu-
tions 3-22
CX25870/871 Autoconfiguration Modes for 800 x 600 RGB In, NTSC Out Desktop Resolutions
CX25870/871 Autoconfiguration Modes for 800 x 600 RGB In, PAL-BDGHI Out Desktop Reso-
lutions 3-23
CX25870/871 Autoconfiguration Modes for 1024 x 768 RGB In, NTSC Out Desktop Resolutions
CX25870/871 Autoconfiguration Modes for 1024 x 768 RGB In, PAL-BDGHI Out Desktop Res-
olutions 3-24
Direction-less Size Control Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25
System Block Diagram for Desktop/Portable PC with TV Out . . . . . . . . . . . . . . . . . . . . . . 3-26
System Block Diagram for Graphics Card with TV Out . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27
SID/SIC Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34
Master Interface Timing Relationship/Noninterlaced RGB/YCrCb Input . . . . . . . . . . . . . . . 4-8
Pseudo-Master Interface Timing Relationship – Active Line/Noninterlaced RGB Input . . . . 4-9
Pseudo-Master Timing Relationship Blank Line/Noninterlaced RGB/YCrCb Input. . . . . . . 4-10
Slave Interface Timing Relationship/Noninterlaced RGB/YCrCb Input . . . . . . . . . . . . . . . . 4-11
Slave Interface Timing Relationship/Interlaced Nonmultiplexed RGB Input (FLD_MODE = 10 –
Default) 4-12
Slave Interface Timing Relationship/Interlaced Nonmultiplexed YCrCb Input (FLD_MODE = 01)
Slave Interface Timing Relationship/Interlaced Nonmultiplexed YCrCb Input (FLD_MODE = 00)
HDTV Output Horizontal Timing Details: 1080i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
HDTV Output Horizontal Timing Details: 720p. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
80-Pin PQFP Package Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Allowable Overscan Compensation Ratios for Dual Display, 640x480 Input, NTSC Output with
20 Clock HBlank Period A-4
Allowable Overscan Compensation Ratios for Dual Display, 640x480 Input, PAL-BDGHI Output
with 20 Clock HBlank Period A-5
Allowable Overscan Compensation Ratios for Dual Display, 800x600 Input, NTSC Output . A-6
Allowable Overscan Compensation Ratios for Dual Display, 800x600 Input, PAL–BDGHI Output,
Standard Clocking Mode A-7
3-22
3-23
3-24
Timing Details for All Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4-13
4-14
Standard Definition TV Out Only 3-7
Standard Definition TV Out Only 3-6
Conexant
Flicker-Free Video Encoder with Ultrascale Technology
CX25870/871
100381B