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Forum Post: AFE4490: No voltage across LED_P and LED_N

Part Number: AFE4490 Tool/software: Hi, On the below circuit, Voltage across: LED DRV and TX_SUP Voltage is 5V RX ANA and RX DIG Voltage is 3V. Our MCU is running at 3.3V and when we observed, the voltage across IN_P with GND and IN_N with GND is 0.89V However, there is no voltage across TX_P with GND and TN_N with GND and our led is not turning ON.

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