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MT9V403 Datasheet(PDF) 7 Page - Micron Technology

Part No. MT9V403
Description  1/2-INCH VGA (WITH FREEZE-FRAME) CMOS ACTIVE-PIXEL DIGITAL IMAGE SENSOR
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Maker  MICRON [Micron Technology]
Homepage  http://www.micron.com
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MT9V403 Datasheet(HTML) 7 Page - Micron Technology

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1/2-INCH VGA (WITH FREEZE-FRAME) CMOS
ACTIVE-PIXEL DIGITAL IMAGE SENSOR
09005aef80c07280
Micron Technology, Inc., reserves the right to change products or specifications without notice.
MT9V403_DS.fm - Rev. B 1/04 EN
7
©2004 Micron Technology. Inc.
Sequential Master Mode
In sequential master mode the exposure period is
followed by readout. The frame synchronization wave-
forms for sequential master mode are shown in
Figure 8.
Figure 8: Sequential Master Mode Frame Synchronization Waveforms
NOTE:
Vertical blanking is nominally 1 SYSCLK and 0 row times, and may be increased by using register 6.
Snapshot Mode
In snapshot mode the sensor accepts an input trig-
ger signal that initiates exposure, which is immediately
followed by readout. The interface signals utilized in
snapshot mode are depicted in Figure 9. In snapshot
mode the start of the integration period is determined
by the externally applied EXPOSE pulse that the user
inputs to the MT9V403. The integration time is prepro-
grammed via the two-wire interface. After each frame's
integration period is complete, the readout process
commences and the FRAME_VALID, ROW_ VALID, and
DATA signals are output.
Snapshot mode can be used to capture a single
image or a sequence of images. The frame rate is con-
trolled only by changing the period of the user sup-
plied EXPOSE pulse train. The frame synchronization
waveforms for snapshot mode are shown in Figure 9.
Insertion of horizontal blanking periods (specified via
the two-wire serial interface register) during readout is
allowed, but the user controls the vertical blanking by
controlling the input EXPOSE pulse.
Figure 9: Snapshot Mode Interface
Signals
Figure 10: Snapshot Mode Frame Synchronization Waveforms
Vertical Blanking
EXPOSE
(output)
FRAME_VALID
(output)
ROW_VALID
(output)
DATA [9:0]
(output)
XXX
XXX
Row
2
Row
1
Row
479
Row
478
Row
1
Row
2
Row
480
Row
479
Row
478
Row
480
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XXX
EXPOSE
MT9V4O3
SYSCLK
FRAME_VALID
ROW_VALID
DATA
LRST_N
CONTROLLER
EXPOSE
(input)
FRAME_VALID
(output)
ROW_VALID
(output)
DATA [9:0]
(output)
XXX
XXX
Row
2
Row
1
Row
479
Row
478
Row
1
Row
2
Row
480
Row
479
Row
478
Row
480
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Exposure Time
Row_Valid goes HIGH after (2.5 + (column start -1)) clocks + 1 row time
*
*
XXX


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