MT9T031: 1/2-Inch 3-Mp Digital Image Sensor Micron's MT9T031 is a QXGA-format 1/2-inch CMOS active-pixel digital image sensor with an active imaging pixel array of 2048H x 1536V. It incorporates sophisticated camera functions on-chip such as windowing, column and row skip mode, and snapshot mode. It is programmable through a simple two-wire serial interface. The 3-megapixel CMOS image sensor features Digi-talClarity™—Micron's breakthrough low-noise CMOS imaging technology that achieves CCD image quality (based on signal-to-noise ratio and low-light sensitivity) while maintaining the inherent size, cost, and integration advantages of CMOS. • Security video cameras with high resolution stills • Detailed feature extraction for smart cameras • Low dark current • Simple two-wire serial interface • Programmable controls: Gain, frame rate, frame size, exposure • Pin-for-pin compatible with Micron's 1.3-megapixel MT9M001 ©2006 Micron Technology, Inc. All rights reserved. Products and specifications discussed herein are subject to change by Micron wi

MT9T031: 1/2-Inch 3-Mp Digital Image Sensor General Description General Description The MT9T031 produces extraordinarily clear, sharp digital pictures, and its ability to capture both continuous video and single frames makes it the perfect choice for a wide range of consumer and industrial applications, including high-resolution network cameras, electronic PTZ cameras, and security video cameras that can also produce high-resolution still images. The sensor can be operated in its default mode or programmed for frame size, exposure, gain setting, and other parameters. The default mode outputs...

MT9T031: 1/2-Inch 3-Mp Digital Image Sensor General DescriptionFigure 3: Typical Configuration (connection) Vdd MASTER CLOCK SCLK Sdata EXTCLK TRIGGER GSHT_CTL Notes: 1. Resistor value 1.5KQ is recommended, but resistance may be greater for slower two-wirespeed.Figure 4: 48-Pin PLCC Draft 8/ 31/ 2006 standby TRIGGER NC RESET# NC GSHT_CTL□ OE# NC Agnd Vaa Agnd Agnd PDF: 09005aef824c997f/Source: 09005aef824c998a Micron Technology, Inc., reserves the right to change products or specifications without notice. MT9T031_3100_PB_2.fm - Rev. A 8/06 EN 2 ©2006 Micron Technology, Inc....

MT9T031: 1/2-Inch 3-Mp Digital Image Sensor General Description Table. 3: Pin Descriptions Draft 8/ 31/ 2006 PDF: 09005aef824c997f/Source: 09005aef824c998a Micron Technology, Inc., reserves the right to change products or specifications without notice. MT9T031_3100_PB_2.fm - Rev. A 8/06 EN 3 ©2006 Micron Technology, Inc. All rights reserved.

MT9T031: 1/2-Inch 3-Mp Digital Image Sensor Feature Description Output Data Format The MT9T031 image data is read out in a progressive scan. Valid image data is surrounded by horizontal blanking and vertical blanking, as shown in Figure 5. Figure 5: Spatial Illustration of Image Readout VALID IMAGE VERTICAL BLANKING Feature Description Window Size HORIZONTAL BLANKING The default programmed window size is 2,048 columns by 1,536 rows (2048H x 1536V), though the window size can be changed through the control logic. Table 4 shows examples of register settings that may be used to achieve various...

MT9T031: 1/2-Inch 3-Mp Digital Image Sensor Feature Description d^crorv Figure 6: Windowing Capabilities Window Window A Window B Window C Window D Blanking Control 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 user can change the number of columns and rows read out as well as the horizontal and vertical blanking times to obtain different frame rates. High Frame Rate Readout Modes In...

MT9T031: 1/2-Inch 3-Mp Digital Image Sensor Feature Description Pixel Integration Time Control Sensor integration time can be changed by adjusting the amount of time the pixels are set to collect charge generated from light. The sensor also supports sub-row integration time for fine control of pixel integration time. Note that not all integration times may be desired under certain lighting conditions. If the light source has a flicker component, then the integration time needs to be set properly to avoid banding in the image. Snapshot Mode and Flash Control Setting Up for Snapshot Mode There...

MT9T031: 1/2-Inch 3-Mp Digital Image Sensor Feature Description Signal Path The MT9T031 sensor analog signal path consists of the pixel array, the column sample and hold (S/H) circuitry, the programmable gain stage, the analog offset correction, and the analog-to-digital converter (ADC). The reset and signal voltages from the pixel are sampled onto the column sample and hold circuitry by row. After signal sampling is complete, the differential signal (reset - signal) is transferred to the programmable gain stage. After the gain stage, the differential signal goes through the analog offset correction...

MT9T031: 1/2-Inch 3-Mp Digital Image Sensor Serial Bus Description Serial Bus Description Registers are written to and read from the MT9T031 through the two-wire serial interface bus. The MT9T031 is a serial interface slave and is controlled by the serial clock (SCLK), which is driven by the serial interface master. Data is transferred into and out of the MT9T031 through the serial data (SDATA) line. Either the slave or master device can pull the SDATA line down—the serial interface protocol determines which device is allowed to pull the SDATA line down at any given time. If the request was a...

MT9T031: 1/2-Inch 3-Mp Digital Image Sensor Electrical Specifications Electrical Specifications Table 6: DC Electrical Characteristics Draft 8/ 31/ 2006 Notes: 1. Stresses greater than those listed may cause permanent damage to the device. This is a stress rating only, and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. To keep dark current and shot noise artifacts from impacting image quality,...