™
MultiGEN GF9103 Over-Sampling
Color Space Converter for Video
Monitoring
DATA SHEET
FEATURES
DEVICE DESCRIPTION
• 4:2:2 to over-sampled RGB or YCBCR conversion in a
single device
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
• 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
data may be passed through Digital to Analog converters
and simplified analog reconstruction filters.
• optional YCBCR (8:8:8) output mode
• setup insertion in Luminance channel under user
control
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
• user selectable digital SIN X/X correction
• rounding to 10/8 bit resolution per output channel
• 40 MHz maximum clock rate
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
• single +5 V power supply
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.
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
Prior to output rounding, over-sampled YCBCR or RGB data
ORDERING INFORMATION
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
PART NUMBER
GF9103-CPS
GF9103-CTS
PACKAGE
68 pin PLCC
TEMPERATURE RANGE
0° to 70° C
signed or unsigned data.
68 pin PLCC Tape
0° to 70° C
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.
CONVERT
BYPASS
SELECT_MATRIX
SETUP
SETUP
OE
Y/G
Y
Y
Y
Y/G
10
10
Y/G
X2
SIN X/X
SIN X/X
CLIP & ROUND
CLIP & ROUND
Y/G
YCBCR
10
CB/B
CR/R
4:2:2
CB
CB/B
MULTIPLEXED
CB
CR
CB/B
CR/R
CB/B
CR/R
CB
CR
TO
X4
2's COMP
2's COMP
DEMUX
CB/B
4:2:2 DATA
STREAM IN
RGB
MATRIX
10
CR/R
CR
X4
SIN X/X
CLIP & ROUND
CR/R
CLK
SYNC
FUNCTIONAL BLOCK DIAGRAM
Revision Date: August 1997
Document No. 521 - 33 - 04
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