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The target application is the PCM2912A+INA1620 to form a USB DAC.
Power is supplied from the computer USB interface, 5V, 500mA.
Now, I have encountered design difficulties: the INA1620 is dual-supply and differentially input.
I don't know how to design the PCM2912A with the INA1620.
1. How to connect VDD, VEE and GND of IN1620
2. When the IN1620 is used as a unity gain amplifier, an internal resistor is also required.
