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ASX340 датащи(PDF) 32 Page - List of Unclassifed Manufacturers |
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ASX340 датащи(HTML) 32 Page - List of Unclassifed Manufacturers |
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32 / 78 page ![]() PDF: 171981479/Source: 8304342517 Aptina reserves the right to change products or specifications without notice. ASX340/MT9V139_DS Rev. C Pub. 3/11 EN 32 © 2010 Aptina Imaging Corporation All rights reserved. ASX340/MT9V139: 1/4-Inch Color CMOS NTSC/PAL Digital Image Sensor External Signal Processing Aptina Confidential and Proprietary Preliminary Power Sequence In power-up, the core voltage (1.8V) must trail the IO (2.8V) by a positive number. All 2.8V rails can be turned on at the same time or follow the power-up sequence in Figure 45: “Power Up Sequence,” on page 62. In power down, the sequence is reversed. The core voltage (1.8V) must be turned off before any 2.8V. Refer to Figure 46: “Power Down Sequence,” on page 63 for details. Figure 19: Power-Up Sequence – Configuration Options Flow Chart DOUT_LSB 0 Power Up/ RESET Auto Configuration: FRAME_VALID LINE_VALID SPI _SDI = 0? Wait for Host Command Wait for Host Command Parse EEPROM/Flash Content Wait for Host Command yes no Disable Auto-Config Host Config DOUT_LSB 1 EEPROM/Flash Header? EEPROM/Flash Exists? no Change Config (default) :(optional) Auto-Config Change-Config Auto-Config Change-Config no yes |
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