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AD5412 数据表(PDF) 8 Page - Analog Devices |
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AD5412 数据表(HTML) 8 Page - Analog Devices |
8 / 20 page AD5700/AD5700-1 Data Sheet Rev. A | Page 8 of 20 Pin No. Mnemonic Description 20 XTAL2 Connection for External 3.6864 MHz Crystal. Do not connect to this pin if using the internal RC oscillator (AD5700-1 only) or an external clock source. 21 XTAL1 Connection for External 3.6864 MHz Crystal or External Clock Source Input. Tie this pin to ground if using the internal RC oscillator (AD5700-1 only). 22 DGND Digital Circuitry Ground Reference Connection. For typical operation, it is recommended to connect this pin to AGND. 23 REF_EN Reference Enable. A high state enables the internal 1.5 V reference and buffer. A low state disables the internal reference and input buffer, and a buffered external 2.5 V reference source must be applied at REF. If REF_EN is tied low, VCC must be greater than 2.7 V. 24 FILTER_SEL Band-Pass Filter Select. A high state enables the internal filter and the HART signal should be applied to the HART_IN pin. A low state disables the internal filter and an external band-pass filter must then be connected at the ADC_IP input pin. In this case, the HART signal should be applied to the ADC_IP pin. EPAD AGND Analog Ground Reference Connection. For typical operation, it is recommended to connect this pin to AGND. |
类似零件编号 - AD5412 |
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类似说明 - AD5412 |
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