cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 156

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

3.0 PC Board Considerations
3.6 Applications Information
3.6.3 System Block Diagrams
Figure 3-14. System Block Diagram for Desktop/Portable PC with TV Out
3-26
NTSC/PAL/SECAM
Television or HDTV
Lin OUT
IEEE 1394
Controller
Mic IN
Lin IN
Host
VGA Monitor
CLKs
PCI/Legacy
Analog RGB
Controller
CODEC
Audio
Conexant VGA Encoder
The CX25870/871 can be designed into any system that requires analog standard
definition television outputs (NTSC/PAL/SECAM/SCART) or high definition
television outputs (YP
inputs.
applications which presently utilize the CX25870/871 encoder.
The following system block diagrams are meant to illustrate several common
CX25871
Bt869
or
PC Controller
PCI CardBus
Controller
Graphics
PCMCIA
PCI Bus
AGP
Socket
Conexant
B
P
AGP
Bus
R
/HD RGB) based on a digital RGB or YC
Digital RGB
or YCrCB
Pixels
Flash ROM
Flicker-Free Video Encoder with Ultrascale Technology
PCI Riser
Device
BIOS
AC '97
Intel Pentium III™
Control
or AMD K7™
North Bridge
Series CPU
Core Logic
Address
South Bridge
Core Logic
Core Logic
CLK #1
Data
Core Logic CLK #2
Memory
Bus
CPU CLK
CX25870/871
Generator
DIMM*2
Clock
SMBus
Parallel Port
Serial Port
IDE
FDD i-f
USB Ports
ATA 33/066
GPIO
ACPI
r
Cb set of
100381B
100381_099