cx23888 Conexant Systems, Inc., cx23888 Datasheet - Page 2

• Manufacturer Part Number: cx23888
• Description: Pci Express Broadcast Audio/video Decoder With 3d Comb And Analog If Demodulator
• Manufacturer: Conexant Systems, Inc.

07-2706
Features
• Support for the following audio formats – Stereo, Mono, Dual
• Two I 2 C master ports (Two ports are provided for a two tuner
• Macrovision 1.0 Detection Compliant
• Support for the following video formats – Composite, S-Video,
• Avanced Consumer IR functionality enables systems to learn,
• High-quality multi-tap horizontal and vertical image scaler for
• I 2 s in/out
• Auxiliary Phase Locked Loop (PLL) clock for general use
• Integrated analog IF demodulator for low or high IF tuners
Video
PCI Express Video Decoders
Language (Mono), Tri Language (Trivox)
design to isolate I 2 C transactions to reduce noise.)
480i YPrPb, RGB Packed, YCrCb Packed, 10-bit Packed, and
YCrCb/YUY2 Format
receive and blast IR signals
decoded video or 4:2:2 sources
© 2008 Conexant Systems, Inc. All Rights Reserved. Conexant and the Conexant
logo are registered trademarks of Conexant Systems, Inc. All other trademarks
are owned by their respective owners. Although Conexant strives for accuracy
in all its publications, this material may contain errors or omissions and is
subject to change without notice.
aNy exPress or ImPlIeD warraNTIes, INcluDINg mercHaNTabIlITy, fITNess for a
ParTIcular PurPose aND NoN-INfrINgemeNT.
special, indirect, incidental or consequential damages as a result of its use.
Conexant Product Portfolio
Conexant’s comprehensive product portfolio includes solutions for imaging, audio, and video applications, and analog modems that enable cost-
effective Internet access. The company’s broadband access products include end-to-end solutions for xDSL networks, and PON solutions for fiber
optic applications.
Two Chroma /
Right Audio In
Left Audio In
One PrPb /
Four CVBS /
Luma Inputs
High & Low
One SIF
Inputs
Tuner IF
THIs maTerIal Is ProVIDeD as Is aND wITHouT
Conexant shall not be liable for any
IF/Audio
Analog
YPrPb
Front
18-Bit
Audio
12-bit
CVBS
ADCs
ADC
End
Y/C
SIF
32, 44.1, 48, 96 kHz
Audio Decoder
Video Decoder
BTSC/EIAJ/A
16 - 24 Bit /
NTSC/PAL/
2/NICAM/
I
IF Video
2
Demod
S In/Out
SECAM
Doc# PBR-200974
www.conexant.com
General Information:
U.S. and Canada: [phone]
International: 1+ [phone]
Headquarters
4000 MacArthur Blvd.
Newport Beach, CA 92660
AM
CX23888 Block Diagram
X1 PCI Express DMA Interface
Baseband
Vol/Tone
3D/2D
Comb
Audio
Filter
• Audio sample rate converters on all inputs and outputs
• Two MPEG transport stream ports: Parallel and Serial
• Two program stream inputs accommodating Serial or
• Programmable VBI data slicer for data services such as closed
• ITU-R BT.656 Input Port and ITU-R BT.656 Output Port
• Adaptive 3D comb filtering via host memory
• PCI Express 1.0a compliant bus
• Worldwide audio and video decoding
• Automatic video and broadcast audio standards detection
• Flexible video input MUX supporting composite, S-Video,
• Integrated sigma-delta stereo audio ADCs with 4:2 MUX
PCI Express Bus
and configuration
and component inputs with integrated anti-alias filtering
Parallel interfaces
caption, WSS, and program guides such as Gemstar 1x & 2x
GPIO x24
GPIO
Input or Output
Parallel TS/PS
BT.656/VIP1.1
Input Port or
Serial TS/PS
Input Port
Single Crystal
Frequency
Master
2x I
2x PLL
UART
2
C
Clock, Data,
Master
Start, Valid
Start, Valid
Audio
SCL{1,2} /
Clock
RS232
Data[7:0],
SDA{1,2}
Clock,