MT9T031C12STC Aptina LLC, MT9T031C12STC Datasheet - Page 24

• Manufacturer Part Number: MT9T031C12STC
• Description: IC SENSOR IMAGE COLOR 48CLCC
• Manufacturer: Aptina LLC
• Series: Micron®DigitalClarity®r
• Type: CMOS Imagingr

Specifications of MT9T031C12STC

• Pixel Size: 3.2µm x 3.2µm
• Active Pixel Array: 2048H x 1536V
• Frames Per Second: 12 ~ 93
• Voltage - Supply: 3 V ~ 3.6 V
• Package / Case: 48-CLCC
• Brief Features: Superior Low Light Performance, Programmable Controls, Low Dark Current, High Frame Rate
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: 0°C To +60°C
• Ic Function: Digital Image Sensor
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 557-1450 - KIT HEAD BOARD FOR MT9T031557-1451 - KIT DEV FOR MT9T031
• Lead Free Status / Rohs Status: Compliant
• Other names: 557-1452

Electronic Panning
Blanking Control
Frame Time
High Frame Rate Readout Modes
PDF: 3682685119/Source: 9830567334
MT9T031_DS - Rev.E 5/11 EN
In addition to changing the window size, the user has the flexibility to change the loca-
tion of the readout window. R0x01 controls the first row to be read out and R0x02
controls the first column to be read out. The default values are 0x0014 (decimal 20) for
R0x01 and 0x0020 (decimal 32) for R0x02. The first column to be read out must be an
even number.
R0x01 and R0x02, together with R0x03 and R0x04, allow the user to choose any segment
of the imager array to be read out. This is especially beneficial when the user needs to
zoom in on a small portion of the image and perform analysis on the image content.
Figure 9 shows some examples of the electronic panning/zoom-in and windowing capa-
bilities of the sensor.
R0x05 and R0x06
These registers control the blanking time in a row (called column fill-in or horizontal
blanking) and between frames (vertical blanking). Horizontal blanking is specified in
terms of pixel clocks. Vertical blanking is specified in terms of row readout times. The
actual imager timing can be calculated using the equations given in Table 4 on page 12.
R0x05 controls the horizontal blanking time in a row. The value is specified in terms of
pixel clocks. Default value of 0x008E for R0x05 results in a horizontal blanking time of
511 pixel clocks. The minimum value for R0x05 is 21. Thus, the minimum horizontal
blanking time is 390 pixel clocks.
R0x06 controls the vertical blanking time in a row. The value is specified in terms of the
number of rows. Default value of 0x0019 for R0x06 results in a vertical blanking time of
26-row time.
R0x03, R0x04, R0x05, and R0x06
Total frame time in terms of pixel clocks can be obtained using the formula given in
Table 4 on page 12. The user can change the number of columns and rows read out,
horizontal blanking and vertical blanking times to obtain different frame rates.
R0x01, R0x02, R0x03, R0x04, R0x05, and R0x06
In addition to having the flexibility to read out smaller standard formats, the sensor gives
the user the option of reading out nonstandard formats. This is particularly useful if the
user needs to zoom in on a particular segment of the image to perform high-speed
mathematical calculations (e.g., high-speed viewfinder or auto focus applications).
In applications such as the auto focus mode, the user may need more horizontal resolu-
tion than vertical. Thus, the user can window down to the mid-section of the imager
array by programming R0x01 and R0x03 to change the row start address and the window
height. Figure 10 is an example of how the user may want to window down to 2,048H x
512V from the default of 2,048H x 1,536V. See also Table 9 for other auto focus mode
resolutions.
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MT9T031: 1/2-Inch 3-Mp Digital Image Sensor
©2006 Aptina Imaging Corporation. All rights reserved.
Feature Description