參數(shù)資料
型號(hào): GF9103
廠商: Gennum Corporation
英文描述: Over-Sampling Color Space Converter for Video Monitoring
中文描述: 過(guò)采樣色彩空間轉(zhuǎn)換的視頻監(jiān)控
文件頁(yè)數(shù): 1/9頁(yè)
文件大?。?/td> 163K
代理商: GF9103
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3
Tel. +1 (905) 632-2996 Fax. +1 (905) 632-5946 E-mail: info@gennum.com
www.gennum.com
Revision Date: August 1997
Document No. 521 - 33 - 04
DATA SHEET
FEATURES
4:2:2 to over-sampled RGB or YC
B
C
R
conversion in a
single device
single 10 bit 4:2:2 input
internal 4:2:2 de-multiplexer
4:2:2 to 8:8:8 interpolation filters
internal YC
B
CR to RG
B
color space conversion
optional YC
B
C
R
(8:8:8) output mode
setup insertion in Luminance channel under user
control
user selectable digital SIN X/X correction
rounding to 10/8 bit resolution per output channel
40 MHz maximum clock rate
single +5 V power supply
APPLICATIONS
Over-Sampling 4:2:2 to Analog RGB Conversions for
video monitoring
Over-Sampling 4:2:2 to Analog YCBCR Conversions for
video monitoring
DEVICE DESCRIPTION
The GF9103 is specifically designed to simplify conversions
from 4:2:2 component digital video to analog RGB or
analog YC
B
C
R
component video. The GF9103 simplifies
this process by performing 4:2:2 to 8:8:8 interpolation,
digital color space conversion and digital SIN X/X
correction in a single device. Immediately following the
GF9103, three over-sampled channels of RGB or YC
B
C
R
data may be passed through Digital to Analog converters
and simplified analog reconstruction filters.
The GF9103 accepts a single 10 bit stream of 4:2:2 data
and internally de-multiplexes it into three 10 bit channels of
YC
B
C
R
data. The YC
B
C
R
data is then passed through
three linear phase FIR filters that over-sample the Y data by
a factor of 2 and the C
B
and C
R
data by a factor of 4.
While operating in an over-sampled RGB output mode, the
interpolated YC
B
C
R
data is passed through the internal
color space converter to convert the YC
B
C
R
data to RGB
data according to CCIR-601. Alternatively, the color space
converter may be bypassed to obtain over-sampled YC
B
C
R
(8:8:8) output data. While operating in YC
B
C
R
output mode,
setup may be dynamically inserted into the Luminance
channel.
Prior to output rounding, over-sampled YC
B
C
R
or RGB data
may be corrected for SIN X/X characteristics of D/A
conversion. Output data may be rounded to 10 or 8 bit
resolution per channel. C
B
and C
R
may be presented as
signed or unsigned data.
The GF9103 is packaged in a 68 pin PLCC package,
operates with a single +5 V power supply and typically
consumes only 85 mA of current when operated at 27 MHz.
FUNCTIONAL BLOCK DIAGRAM
ORDERING INFORMATION
PART NUMBER
PACKAGE
TEMPERATURE RANGE
GF9103-CPS
68 pin PLCC
0° to 70° C
GF9103-CTS
68 pin PLCC Tape
0° to 70° C
10
10
10
CLIP & ROUND
CLIP & ROUND
CLIP & ROUND
SELECT_MATRIX
SETUP
SETUP
SIN X/X
SIN X/X
SIN X/X
Y
MULTIPLEXED
4:2:2 DATA
STREAM IN
YCBCR
TO
RGB
MATRIX
BYPASS
CB
4:2:2
DEMUX
SYNC
CLK
OE
CR
Y
X2
X4
X4
CB
CR
CR
Y
CB
Y/G
CR/R
CB/B
Y/G
CB/B
CR/R
Y/G
CB/B
CR/R
Y/G
CB/B
CR/R
CB/B
CR/R
2's COMP
CONVERT
2's COMP
10
Multi
GEN
GF9103 Over-Sampling
Color Space Converter for Video
Monitoring
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