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MT9M413C36STC Datasheet(PDF) 11 Page - Micron Technology |
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MT9M413C36STC Datasheet(HTML) 11 Page - Micron Technology |
11 / 30 page 1.3-MEGAPIXEL CMOS ACTIVE-PIXEL DIGITAL IMAGE SENSOR 09005aef806807ca Micron Technology, Inc., reserves the right to change products or specifications without notice. MT9M413C36STC.fm - Ver. 3.0 1/04 EN 11 ©2004 Micron Technology, Inc. All rights reserved. Figure 10: Typical Example of TrueSNAP Sequential Mode: Exposure Following Readout TrueSNAP Single Frame The MI-MV13 can run in single frame or snap-shot mode in which one image is captured. In single frame mode integration must be preceded with a void frame read (selecting all addresses and applying ROW_STRT_N) or PG_N and TX_N must be applied together (for a minimum of 10 SYSCLK cycles) to clear pixel and pixel memory. Holding PG_N and TX_N low resets the photodioide (PG_N) and the analog memory which is shorted to the photodiode by the TX_N switch. To start integration both TX_N and PG_N are released. To end integration and sample the signal into memory TX_N is made low again for 10 clocks mini- mum, up to 64 clocks (see Figure 6 on page 7). After TX_N is returned to the high state there must be a delay of >1 SYSCLK prior to lowering PG_N again to erase charge in the photodetector. Figure 11: Typical Example of TrueSNAP Single Frame Mode ERS Mode This mode is enabled by pulling PG_N high and TX_N low. Partial Scan Examples The MI-MV13 can be partially scanned by sub-sam- pling rows. The user may select which rows and how many rows to include in a partial scan. For example, with a 66-megahertz clock, a row time is approxi- mately 2 microseconds, resulting in the following pos- sibilities: 1 row in frame: 500,000 frames per second 2 rows in frame: 250,000 frames per second 10 rows in frame: 50,000 frames per second 100 rows in frame: 5,000 frames per second 256 rows in frame: 2,000 frames per second 512 rows in frame: 1,000 frames per second 1,024 rows in frame: 500 frames per second ...etc Readout Time ROW_ADDR 1023 0 PG_N TX_N Readout Exposure time Exposure time TIME ROW_ADDR 1023 0 PG_N TX_N EXPOSURE TIME READOUT “SLEEP” STATE “SLEEP” STATE TIME ROW_ADDR 1023 0 PG_N TX_N EXPOSURE TIME READOUT “SLEEP” STATE “SLEEP” STATE Table 3: Pin Description PIN NUMBER(S) SIGNAL NAME FUNCTION DATA [99:0] Pixel data output bus that is ten pixels (100 bits) wide. Bit 0 is the LSB (least significant bit) of the lowest order pixel (See Table 2, Pixel Array, on page 7). In the group of ten pixels being output, bit 9 is the MSB (most significant bit). T13 DATA0 U14 DATA1 V15 DATA2 T14 DATA3 V16 DATA4 |
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