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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AD9042AST датащи(PDF) 5 Page - Analog Devices |
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AD9042AST датащи(HTML) 5 Page - Analog Devices |
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5 / 24 page  AD9042 REV. A –5– AD9042AST PIN DESCRIPTIONS Pin No. Name Function 1, 2 DVCC +5 V Power Supply (Digital). Powers output stage only. 3 ENCODE Encode input. Data conversion initiated on rising edge. 4 ENCODE Complement of ENCODE. Drive differentially with ENCODE or bypass to Ground for single-ended clock mode. 5, 6 GND Ground. 7 AIN Analog Input. 8VOFFSET Voltage Offset Input. Sets mid- point of analog input range. Normally tied to VREF through 50 Ω resistor. 9VREF Internal Voltage Reference. Nominally +2.4 V; normally tied to VOFFSET through 50 Ω resistor. Bypass to Ground with 0.1 µF + 0.01 µF microwave chip cap. 10 C1 Internal Bias Point. Bypass to ground with 0.01 µF cap. 11, 12 AVCC +5 V Power Supply (Analog). 13, 14 GND Ground. 15, 16 AVCC +5 V Power Supply (Analog). 17, 18 GND Ground. 19, 20 AVCC +5 V Power Supply (Analog). 21 GND Ground. 22 GND Ground. 23 NC No Connects. 24 GND Ground. 25 D0 (LSB) Digital Output Bit (Least Significant Bit) 26–33 D1–D8 Digital Output Bits 34, 35 GND Ground. 36, 37 DVCC +5 V Power Supply (Digital). Powers output stage only. 38, 39 GND Ground. 40, 41 DVCC +5 V Power Supply (Digital). Powers Output Stage only. 42, 43 D9–D10 Digital Output Bits. 44 D11 (MSB) 1 Digital Output Bit (Most Significant Bit). NOTE 1Output coded as twos complement. AD9042AD PIN DESCRIPTIONS Pin No. Name Function 1 GND Ground. 2DVCC +5 V Power Supply (Digital). Powers output stage only. 3 GND Ground. 4 ENCODE Encode input. Data conversion initiated on rising edge. 5 ENCODE Complement of ENCODE. Drive differentially with ENCODE or bypass to Ground for single-ended clock mode. 6, 7 GND Ground. 8 AIN Analog Input. 9VOFFSET Voltage Offset Input. Sets mid- point of analog input range. Normally tied to VREF through 50 Ω resistor. 10 VREF Internal Voltage Reference. Nominally +2.4 V; normally tied to VOFFSET through 50 Ω resistor. Bypass to Ground with 0.1 µF cap. 11 GND Ground. 12 AVCC +5 V Power Supply (Analog). 13 GND Ground. 14 AVCC +5 V Power Supply (Analog). 15, 16 NC No Connects. 17 D0 (LSB) Digital Output Bit. (Least Significant Bit). 18–27 D1–D10 Digital Output Bits. 28 D11 (MSB) 1 Digital Output Bit (Most Significant Bit). NOTE 1Output coded as twos complement. AD9042 CUSTOM 28-PIN DIP PACKAGE |
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