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GF9103 Datasheet(PDF) 2 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) 2 Page - Gennum Corporation

   
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2
PIN DESCRIPTION
PIN NO.
SYMBOL
DESCRIPTION
10, 18, 27, 36, 44, 52,
61, 68
VDD
±5 V ± 5% power supply.
1, 6, 7, 9, 26, 30, 35,
40, 43, 60, 64
GND
Ground.
3
SCAN_EN
Set Low.
8, 11-17, 19, 20
SI9..0
Input Data Port: Input data port with internal pull-downs. Input data is assumed to be a
multiplexed stream of CBYCR [Y] CB..., where [Y] denotes an isolated Luminance sample.
SI9 is the Most Significant Bit and SI0 is the Least Significant Bit.
4OE
Output Enable: Active low input with internal pull-up. When OE is high, the output data ports
are in high impedance state.
59-53, 51-49
SOA9..0
Output Data Port A: Depending on device configuration, SOA9..0 may output over-sampled
Y or G video. SOA9 is the Most Significant Bit and SOA0 is the Least Significant Bit.
48-45, 42, 41, 39-37,
34
SOB9..0
Output Data Port B: Depending on device configuration, SOB9..0 may output over-sampled
CB or B video. SOB9 is the Most Significant Bit and SOB0 is the Least Significant Bit.
33-31, 29, 28, 25-21
SOC9..0
Output Data Port C: Depending on device configuration, SOC9..0 may output over-sampled
CR or R video. SOC9 is the Most Significant Bit and SOC0 is the Least Significant Bit.
2
CLK
System Clock: All timing information relative to rising edge of clock.
5
SYNC
Synchronization: Control signal input with internal pull-up. This input is used to synchronize
the incoming data by holding SYNC high on clock period N and low on clock period N+1
when the first CB sample is presented to the SI9..0 inputs. SYNC may be held low until re-
synchronization is desired or may be toggled at every occurrence of a CB sample.
65
SELECT_MATRIX
Select Color Space Conversion: Control signal input with internal pull-down.
SELECT_MATRIX is used to enable and disable the internal YCBCR to RGB color space
converter. Color space conversion is enabled while SELECT_MATRIX is high and is
disabled while SELECT_MATRIX is low.
66
BYPASS
Bypass SIN X/X Correction: Control signal input with internal pull-up. When BYPASS is
high, SIN X/X correction for the three output channels is enabled. While BYPASS is low, SIN
X/X correction is by-passed.
63
SETUP
Setup: Control signal input with internal pull-down. SETUP is used to enable and disable
setup insertion in the Luminance channel.
62
CONVERT
Two's Complement Conversion: Control signal input with internal pull-up. While CONVERT
is high, SOB9..0 and SOC9..0 output signed (two’s complement) digital data. While
CONVERT is low, SOB9..0 and SOC9..0 output unsigned (offset binary) data. When
operating in RGB output mode, the CONVERT pin is over-ridden and both SOB9..0 and
SOC9..0 output unsigned digital data. SOA9..0 outputs unsigned digital data in all operating
modes.
67
RND10/8
Output Rounding: Control signal input with internal pull-up. RND10/8 selects rounding to
10 bit resolution per channel when high and rounding to 8 bit resolution per channel when
low.


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