ETC W9954F

W9953F/W9954F
TV ENCODER
• Master or slave operation modes
GENERAL DESCRIPTION
• Programmable sync polarity and horizontal phase
• Programmable Y/C delay relationship
The W9953F/ W9954F is a high performance digital
video encoder which converts a 4:2:2 ITU-R 601/656
digital video stream into a standard analog base
band composite video and Y/C video signals, which
compatible with worldwide standards.
• Sync extraction from digital input data
• Interlaced or non-interlaced operation
• Closed captioning and WSS/CGMS encoding
The W9953F/ W9954F can operate in either master
or slave mode and interlaced or non-interlaced
mode. The on-chip 2X over sampling eases the
analog post-filtering. Three 10-bit resolution D/A
converters provide Y,C and CVBS signals, all in
standard video-level at doubly terminated 75 Ω
loads.
• PAL-WST Teletext encoding
• Fast I2C-bus control port
• Macrovision Rev 7.01 copy protection process
(W9953F only)
• On chip color-bar generator
• Internal voltage reference
The chips provide Closed-Caption, WSS/ CGMS
and teletext functions.
• Power down mode
The W9953F also provides Macrovision 7.01 copy
protection, but W9954F doesn't provide this function.
• Monolithic CMOS 3.3V (5V) device
• 44-pin QFP package
FEATURES
APPLICATIONS
• Full multi-standard digital encoder supports
NTSC-M, PAL-B, D, G, H, I, N and M encoding
• Accepts ITU-R 601/ 656 8-bit YCbCr (4:2:2) input
format
• Three 10-bit DACs, run at 2X pixel rate, provide
Y,C and CVBS outputs.
W9953F/ W9954F is designed for digital video
applications, such as DVD (Digital Versatile Disc),
players STBs (Set-Top Box), Multimedia PCs and
other video equipment.
FUNCTIONAL BLOCK
SDA
SCL
AS
XTALO XTALI
XCLK
TTX TTXR
Q
crystal
oscillator
I2C-bus
Interface
Note,
Teletext
Closed
Captioning
Sync Generator
Internal
Voltage
Reference
WSS/CGMS
P[7:0]
HSYNC
ODDEV/VSYNC
Demultiplexer
and
SYNC Extract
Video Timing
Generator
4:2:2 to 4:4:4
and
Up-sampling
Interpolator
LPF
CLK
Winbond Corporate Headquarters
Tel : 886-3-5790666
Fax : 886-3-5796139
COMP
FSADJ
LPF
D/A
Y
D/A
CVBS
D/A
C
Macrovision
LPF
Chroma
Modulator
RESET#
VREF
VSSD
VDDD
VDDA1
VDDA2
Taipei Sales Office
Tel : 886-2-27190505
Fax : 886-2-27197502
The difference between W9953F and W9954F is W9953F
provides Macro -vision 7.01 copy protection, but W9954F
doesn't provide this function.
The W9953F may be purchased by Macrovision Authorized
Buyers only.
This device is protected by U.S. Patent numbers 4,631,603,
4577216 and 4,819,098, and other intellectual property
rights. The use of Macro- vision's copy protection
technology in this device must be authorized by Macrovision
and is intended for home and other limited pay-per-view
uses only, unless otherwise authorized in writing by
Macrovision. Reverse engineering or disassembly is
prohibited.
VSSA1
VSSA2
Winbond Electronics North America Corp.
Tel : 1-408-943666
Fax : 1-408-9436668
Details are subject to change without notice. All trademarks are property of their respective holders.
Winbond Electronics H.K. Ltd.
Tel : 852-27513100
Fax : 852-27552064
Jul. 1998