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GF9103 Datasheet(PDF) 1 Page - Gennum Corporation

Part No. GF9103
Description  Over-Sampling Color Space Converter for Video Monitoring
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Maker  GENNUM [Gennum Corporation]
Homepage  http://www.gennum.com
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GF9103 Datasheet(HTML) 1 Page - Gennum Corporation

   
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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 YCBCR 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 YCBCR to RGB color space conversion
• optional YCBCR (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 YCBCR 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 YCBCR
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
YCBCR data.
The YCBCR data is then passed through
three linear phase FIR filters that over-sample the Y data by
a factor of 2 and the CB and CR data by a factor of 4.
While operating in an over-sampled RGB output mode, the
interpolated YCBCR data is passed through the internal
color space converter to convert the YCBCR data to RGB
data according to CCIR-601. Alternatively, the color space
converter may be bypassed to obtain over-sampled YCBCR
(8:8:8) output data. While operating in YCBCR output mode,
setup may be dynamically inserted into the Luminance
channel.
Prior to output rounding, over-sampled YCBCR 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. CB and CR 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
MultiGEN
GF9103 Over-Sampling
Color Space Converter for Video
Monitoring


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