Today, I test the chip HMC546MS8G itself, I found pin 6 (Vdd) is short to the exposed pad(GND) and the resistor to GND is about 0.2Ω， is it normal? if so, when powered, the current of vdd will be very large? I think it is very strange. When the chip is installed on the PCB, the suitation is the same. Is there anything wrong with this chip?