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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AD7779ACPZ датащи(PDF) 16 Page - Analog Devices |
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AD7779ACPZ датащи(HTML) 16 Page - Analog Devices |
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16 / 101 page  Data Sheet AD7779 Rev. A | Page 15 of 100 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS AD7779 TOP VIEW (Not to Scale) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 AIN0– AIN0+ AIN1– AIN1+ AVSS1A AVDD1A REF1– REF1+ AIN2– AIN2+ AIN3– AIN3+ MODE0/GPIO0 MODE1/GPIO1 MODE2/GPIO2 MODE3/ALERT NOTES 1. EXPOSED PAD. CONNECT THE EXPOSED PAD TO AVSSx. AIN4– AIN4+ AIN5– AIN5+ AVSS1B AVDD1B REF2– REF2+ AIN6– AIN6+ AIN7– AIN7+ RESET SYNC_IN SYNC_OUT START 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 Figure 7. Pin Configuration Table 9. Pin Function Descriptions Pin No. Mnemonic Type Direction Description 1 AIN0− Analog input Input Analog Input Channel 0, Negative. 2 AIN0+ Analog input Input Analog Input Channel 0, Positive. 3 AIN1− Analog input Input Analog Input Channel 1, Negative. 4 AIN1+ Analog input Input Analog Input Channel 1, Positive. 5 AVSS1A Supply Supply Negative Front-End Analog Supply for Channel 0 to Channel 3, Typical at −1.65V (Dual Supply) and AGND (Single Supply). Connect all the AVSSx pins to the same potential. 6 AVDD1A Supply Supply Positive Front-End Analog Supply for Channel 0 to Channel 3, Typical at AVSSx + 3.3 V. Connect this pin to AVDD1B. 7 REF1− Reference Input Negative Reference Input 1 for Channel 0 to Channel 3, Typical at AVSSx. Connect all the REFx− pins to the same potential. 8 REF1+ Reference Input Positive Reference Input 1 for Channel 0 to Channel 3, Typical at REF1− + 2.5 V. 9 AIN2− Analog input Input Analog Input Channel 2, Negative. 10 AIN2+ Analog input Input Analog Input Channel 2, Positive. 11 AIN3− Analog input Input Analog Input Channel 3, Negative. 12 AIN3+ Analog input Input Analog Input Channel 3, Positive. 13 MODE0/GPIO0 Digital I/O I/O Mode 0 Input Pin in Pin Control Mode (MODE0). See Table 18 for more details. Configurable General-Purpose Input/Output 0 in SPI Control Mode (GPIO0). If not in use, connect this pin to DGND or IOVDD. 14 MODE1/GPIO1 Digital I/O I/O Mode 1 Input Pin in Pin Control Mode (MODE1). See Table 18 for more details. Configurable General-Purpose Input/Output 1 in SPI Control Mode (GPIO1). If not in use, connect this pin to DGND or IOVDD. 15 MODE2/GPIO2 Digital I/O I/O Mode 2 Input Pin in Pin Control Mode (MODE2). See Table 18 for more details. Configurable General-Purpose Input/Output 2 in SPI Control Mode (GPIO2). If not in use, connect this pin to DGND or IOVDD. 16 MODE3/ALERT Digital I/O I/O Mode 3 Input Pin in Pin Control Mode (MODE3). See Table 18 for more details. Alert Output Pin in SPI Control Mode (ALERT). |
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