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ADuM7642ARQZ Arkusz danych(PDF) 11 Page - Analog Devices |
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ADuM7642ARQZ Arkusz danych(HTML) 11 Page - Analog Devices |
11 / 20 page Data Sheet ADuM7640/ADuM7641/ADuM7642/ADuM7643 Rev. 0 | Page 11 of 20 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS *PIN 2 AND PIN 10 ARE INTERNALLY CONNECTED. CONNECTING BOTH PINS TO PCB SIDE 1 GROUND IS RECOMMENDED. PIN 11 AND PIN 19 ARE INTERNALLY CONNECTED. CONNECTING BOTH PINS TO PCB SIDE 2 GROUND IS RECOMMENDED. 1 2 3 4 20 19 18 17 5 16 6 15 7 14 9 12 10 11 8 13 ADuM7640 TOP VIEW (Not to Scale) VDD1A GND1* VIA VIB VIC VID VDD1B VIE VIF GND1* VDD2A GND2* VOA VOB VOC VOD VDD2B VOE VOF GND2* Figure 6. ADuM7640 Pin Configuration Table 20. ADuM7640 Pin Function Descriptions Pin No. Mnemonic Description 1 VDD1A Supply Voltage A for Isolator Side 1 (3.0 V to 5.5 V). Pin 1 must be connected externally to Pin 7. Connect a 0.01 µF to 0.1 µF between VDD1A (Pin 1) and GND1 (Pin 2). 2 GND1 Ground Reference for Isolator Side 1. Pin 2 and Pin 10 are internally connected, and connecting both pins to the PCB ground plane is recommended. 3 VIA Logic Input A. 4 VIB Logic Input B. 5 VIC Logic Input C. 6 VID Logic Input D. 7 VDD1B Supply Voltage B for Isolator Side 1 (3.0 V to 5.5 V). Pin 7 must be connected externally to Pin 1. Connect a 0.01 µF to 0.1 µF between VDD1B (Pin 7) and GND1 (Pin 10). 8 VIE Logic Input E. 9 VIF Logic Input F. 10 GND1 Ground Reference for Isolator Side 1. Pin 2 and Pin 10 are internally connected, and connecting both pins to the PCB ground plane is recommended. 11 GND2 Ground Reference for Isolator Side 2. Pin 11 and Pin 19 are internally connected, and connecting both pins to the PCB ground plane is recommended. 12 VOF Logic Output F. 13 VOE Logic Output E. 14 VDD2B Supply Voltage B for Isolator Side 2 (3.0 V to 5.5 V). Pin 14 must be connected externally to Pin 20. Connect a 0.01 µF to 0.1 µF between VDD2B (Pin 14) and GND2 (Pin 11). 15 VOD Logic Output D. 16 VOC Logic Output C. 17 VOB Logic Output B. 18 VOA Logic Output A. 19 GND2 Ground Reference for Isolator Side 2. Pin 11 and Pin 19 are internally connected, and connecting both pins to the PCB ground plane is recommended. 20 VDD2A Supply Voltage A for Isolator Side 2 (3.0 V to 5.5 V). Pin 20 must be connected externally to Pin 14. Connect a 0.01 µF to 0.1 µF between VDD2A (Pin 20) and GND2 (Pin 19). Reference the AN-1109 Application Note for specific layout guidelines. |
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