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MT9M131 датащи(PDF) 27 Page - ON Semiconductor |
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MT9M131 датащи(HTML) 27 Page - ON Semiconductor |
27 / 50 page MT9M131 www.onsemi.com 27 SENSOR CORE OVERVIEW The sensor consists of a pixel array of 1316 × 1048 total, an analog readout chain, 10-bit ADC with programmable gain and black offset, and timing and control. Figure 6. Sensor Core Block Diagram Control Register Analog Processing ADC Communication Bus to IFP 10-bit Data to IFP Sync Signals Clock Active-Pixel Sensor (APS) Array Timing and Control PIXEL DATA FORMAT Pixel Array Structure The MT9M131 sensor core pixel array is configured as 1316 columns by 1048 rows (shown in Figure 7). The first 26 columns and the first 8 rows of pixels are optically black, and can be used to monitor the black level. The last column and the last 7 rows of pixels also are optically black. The black row data is used internally for the automatic black level adjustment. However, the first 8 black rows can also be read out by setting the sensor to raw data output mode (R0x022). There are 1289 columns by 1033 rows of optically-active pixels that provide a 4-pixel boundary around the SXGA (1280 × 1024) image to avoid boundary effects during color interpolation and correction. The additional active column and additional active row are used to enable horizontally and vertically mirrored readout to start on the same color pixel. Figure 7. Pixel Array Description (1315, 1047) 26 Black Columns 7 Black Rows 8 Black Rows (0, 0) 1 Black Column SXGA (1,280 x 1,024) + 4 pixel boundary for + additional active column + additional active row = 1,289 x 1,033 active pixels color correction The MT9M131 sensor core uses an RGB Bayer color pattern, as shown in Figure 8. The even-numbered rows contain green and red color pixels, and odd-numbered rows contain blue and green color pixels. Even-numbered columns contain green and blue color pixels; odd-numbered columns contain red and green color pixels. Because there are odd numbers of rows and columns, the color order can be preserved during mirrored readout. |
Аналогичный номер детали - MT9M131_17 |
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