Video Encoder. CX25898 Datasheet

CX25898 Encoder. Datasheet pdf. Equivalent


Conexant Systems CX25898
CX25898/9
Video Encoder with Adaptive
Flicker Filtering and HDTV
Output
Data Sheet
102759A
February 2006


CX25898 Datasheet
Recommendation CX25898 Datasheet
Part CX25898
Description Video Encoder
Feature CX25898; CX25898/9 Video Encoder with Adaptive Flicker Filtering and HDTV Output Data Sheet 102759A February .
Manufacture Conexant Systems
Datasheet
Download CX25898 Datasheet




Conexant Systems CX25898
Ordering Information
Model Number
Revision History
Revision
A
Package
Operating Temperature
Date
February 14, 2006
Description
Initial Release
© 2006, Conexant Systems, Inc.
All Rights Reserved.
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Conexant
102759A
Conexant Proprietary and Confidential
2/14/06



Conexant Systems CX25898
Preliminary Information
This document contains information on a new product. The parametric information,
although not fully characterized, is the result of testing initial devices.
CX25898/9
Video Encoder with Adaptive Flicker Distinguishing Features
Filtering and HDTV Output
‹ 4 high-performance, 10-bit DACs
‹ HDTV output mode
Conexant’s CX25898/9 is specifically designed to meet TV out system
requirements for the next-generation desktop PCs, notebook PCs, game
consoles, portable media players, progressive DVD players, and set-top
boxes. With software-forward compatibility to the CX25870/1/2/3/4/5,
manufacturers can quickly bring to market new solutions that require
adaptive flicker filtering, ATSC High-Definition Television (HDTV) outputs,
and standard TV out active VGA resolutions from 320 x 200 (minimum) to
1024 x 768 (maximum).
Adaptive flicker filtering is a Conexant technology in which the encoder
looks at the characteristics of the video content on a pixel-by-pixel basis
and automatically determines the optimal amount of flicker filtering
required. If an end-user wants to work on a spreadsheet while watching a
DVD movie in a window, both the text-intensive application requiring a lot
of flicker filtering, and the DVD movie requiring very little flicker filtering
can look their best.
– Compliant with EIA770-3 and
SMPTE274M (1080i),
SMPTE296M (720p), ITU-
R.BT1358 (625p and 525p) and
ITU-R.BT.709-4 (1035i and CIF
30/ PsF and 60/ I) standards
– Automatic trilevel sync and
broad pulse generation
– Direct YPRPB or RGB HDTV
outputs from progressive
RGB or YCrCb graphics video
in 1080i, 720p, 480p ATSC and
ITU-R.BT.1358 625p and 525p
resolutions
– Support for Japan D1 (525i),
D2 (D1+525p), D3 (D2+750p),
D4 (D3+1125i) HDTV formats
The CX25898/9 also provides an analog RGB or YPRPB HDTV output. The ‹ Software and register compatible
CX25898/9 is compliant with the EIA770-3 and SMPTE 274M/293M/296M
with the CX25870/1/2/3/4/5
standards and supports all major ATSC HDTV resolutions including 480p, ‹ Worldwide standard-definition
625p (576p), 720p, and 1080i.
TV support: NTSC-M, J, 4.43,
All worldwide standard definition composite outputs are supported,
including NTSC-M (N. America, Taiwan), NTSC-J (Japan), NTSC 4.43, PAL-
PAL-B, D, G, H, I, M, N, Nc, 60,
and SECAM
B,D,G,H,I (Europe, Asia), PAL-M (Brazil), PAL-N (Uruguay, Paraguay), PAL-
Nc (Argentina), PAL-60 (China) and SECAM. For enhanced TV viewing, S-
video (SVHS) can be transmitted as well. The CX25898 and CX25899 are
‹ Adaptive flicker filtering for
enhanced image quality (patents
pending), and peaking filters for
text sharpness
functionally identical, except the CX25899 can output standard definition
video with Macrovision® Level 7.1.L1 copy protection capability, and HDTV
‹ Programmable overscan
compensation from 0% to 25%
with Macrovision 525p (480p) copy protection for progressive scan outputs. ‹ Programmable power
Functional Block Diagram
management
‹ Wide-Screen Signaling (WSS)
24
PIX[23:0]
Input
DEMUX
Color
Space
Conversion
#1
Flicker
Filter/
Scaler
FIFO
and CGMS support for variable
clock rates
– Adheres to EIAJ CPR-1204
HSYNC*
VSYNC*
BLANK*
FIELD
SIC
SID
ALTADDR
RESET*
SLEEP
GPO[5:0]
XTALIN
XTALOUT
Timing
Serial
Interface
XTAL
OSC
Internal
Reference
Video
Encoder
Color
Space
Conversion
#2
To Internal
Clocks
DAC
MUX
PLL
Clock
Generation
10-Bit
10-Bit
10-Bit
10-Bit
FSADJUST
COMP
VREF
DACA
DACB
DACC
DACD
CLKO
CLKI
and 1204-1, 1204-2, and
EN300 294 standards
‹ 3.3 V operation with scalable
low-voltage graphics controller
interface
‹ ColorstreamTM (EIA 770.2) and
Super ColorstreamTM component
video outputs
‹ Component YCR CB analog
outputs
‹ Luma and chroma comb filtering
(Continued on next page)
XTL_BFO
102759A
2/14/06
Conexant
Conexant Proprietary and Confidential
3







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