W9950P Winbond, W9950P Datasheet
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W9950P
Manufacturer Part Number
W9950P
Description
Manufacturer
Winbond
Datasheet
1.W9950P.pdf
(1 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
W9950P
Manufacturer:
WINBOND/华邦
Quantity:
20 000
GENERAL DESCRIPTION
The W9950P digital video encoder converts digital
R,G,B 24-bit data and YCrCb (4:2:2) 16-bit data into
analog composite video and Y/C video signals. The
video format is 525-line (M) NTSC or
(B,D,G, H,I) PAL.
The W9950P can operate in master or slave mode.
In master mode, the W9950P internally generates
the required video timing signals HSYNC and
VSYNC and
specified NTSC/PAL video standard. In slave mode,
it accepts HSYNC and VSYNC input signals to
synchronize with an external video source.
The input data are converted into luminance and
chrominance components. Gamma correction can
be selected by the Gamma pin in RGB 24-bit mode.
The chroma data are then low passed by a 1.3 MHz
filter and modulated by a color subcarrier.
The Y signal consists of luminance, sync, and blank
signals. It is converted by an 8-bit D/A converter into
an analog Y signal. The C signal consists of color
burst and modulated color information. It is
converted by an 8 bit D/A converter into an analog C
signal. The analog Y and C signal outputs are
available for interfacing to S-video input machines.
There are two analog composite outputs. This allows
one output to provide baseband composite video
and the other output to drive an RF modulator
simultaneously.
The W9950P may be placed in power-down mode by
selecting the SLEEP pin.
The W9950P
applications such as video CD,and Video games.
Since
programming, the PC board wire routing is very
simple.
FEATURES
Winbond Corporate Headquarters
Tel : 886-3-5790666
Fax : 886-3-5796139
Details are subject to change without notice. All trademarks are property of their respective holders.
Monolithic CMOS process
Two composite outputs
Y/C video output (S video)
no
internal
a FIELD signal according to the
is designed
registers
Taipei Sales Office
Tel : 886-2-27190505
Fax : 886-2-27197502
for
require
digital
625-line
video
CPU
Winbond Electronics North America Corp.
Tel : 1-408-943666
Fax : 1-408-9436668
/YCbCr
RGB
CLK
Power-down mode
Optional Gamma correction
CCIR601 or square pixel input data rates
Master/slave sync signal switchable
Interlaced and non-interlaced operation
Optional internal voltage reference
Internal digital oscillator (no crystal required)
Decoder
MPEG
Slave
Fig 1. W9950P Functional Block
Generator
V/ H SYNC
Timming
Color Space
Correction
Converter
Video
GAMMA
Fig 2. W9950P Application
&
RGB, YCbCr
Field
CLK
Blank
Sync
Filter
Low
Pass
V.Sync
H.Sync
TV ENCODER
Winbond Electronics H.K. Ltd.
Tel : 852-27513100
Fax : 852-27552064
BandgapVoltage
Reference
Modulator
W9950P
Encoder
TV
Master
W9950P
Apr. 1997
DAC
DAC
DAC
DAC
CVBS
S-video
Y
Composite
Composite
C