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LM98714 Datasheet(PDF) 18 Page - Texas Instruments

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Part # LM98714
Description  LM98714 Three Channel, 16-Bit, 45 MSPS Analog Front End with LVDS/CMOS Output
PDF  115 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM98714 Datasheet(HTML) 18 Page - Texas Instruments

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OS
R
OS
G
OS
B
Input Bias/
Clamping
Input Bias/
Clamping
Input Bias/
Clamping
CDS
or
Sample/Hold
Amplifier
CDS
or
Sample/Hold
Amplifier
CDS
or
Sample/Hold
Amplifier
PGA
PGA
PGA
3:1
MUX
5:1
MUX
COLOR1DAC[9:0]
COLOR2DAC[9:0]
COLOR3DAC[9:0]
COLOR4DAC[9:0]
COLOR5DAC[9:0]
COLOR2DAC[9:0]
COLOR3DAC[9:0]
5:1
MUX
COLOR1PGA[7:0]
COLOR2PGA[7:0]
COLOR3PGA[7:0]
COLOR4PGA[7:0]
COLOR5PGA[7:0]
COLOR2PGA[7:0]
COLOR3PGA[7:0]
Black
Level
Offset
DAC
Black
Level
Offset
DAC
Black
Level
Offset
DAC
Up to “Five Color” line sequences shown thru OS
R input. “Single Color” sequences also selectable
thru the OS
G and OSB inputs.
LM98714
SNAS254A – OCTOBER 2006 – REVISED JANUARY 2014
www.ti.com
MODE 1A - ONE CHANNEL INPUT/ONE, TWO, THREE, FOUR, OR FIVE COLOR SEQUENTIAL LINE
SAMPLING
In Mode 1a, all pixels are processed through a single input (OSR, OSG, or OSB) chosen through the control
register setup. This mode is useful in applications where only one input channel is used. The selected input is
programmable through the control register. If more than one color is being sent to the input, the user can
configure the OSR channel to utilize up to five offset and gain coefficients for up to five different lines of color
pixels. The SH pulse at the beginning of each line sequences the DAC and PGA coefficients as configured in the
control registers. In this mode, the maximum channel speed is 30MSPS per channel with the ADC running at
30MSPS.
Figure 7. Mode 1a Signal Routing
Table 3. Mode 1a Operating Details
Detail
Channels Active
OSR
One color active per line.
Channel Sample Rate
30
MSPS per Channel (max)
ADC Sample Rate
30
MSPS (max)
fADC: fINCLK
Internal 1x Clock Selected
1:01
fINCLK = 30MHz (max)
18
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Copyright © 2006–2014, Texas Instruments Incorporated
Product Folder Links: LM98714



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