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SN65HVD230Q-Q1采用ISO7221A-Q1隔离的电路怎么设计

Other Parts Discussed in Thread: ISO7221A-Q1, SN65HVD230Q-Q1

您好!请问SN65HVD230Q-Q1使用ISO7221A-Q1隔离时,SN65HVD230Q-Q1的GND和3V3是采用隔离后的地,还是隔离前的地?如下图所示,上图是隔离前的地,下图地,下图是隔离后的地

还有ISO7221A-Q1的INA和INB是连接SN65HVD230Q-Q1的CANL、CANH还是D、R引脚;也就是说MCU的CANTX、CANRX的引脚是连接SN65HVD230Q-Q1的D、R引脚还是SO7221A-Q1的OUTA和OUTB引脚