I have recently procured 2 Qty. AD9951 - DDS Chips.
When I test the chip separately (Dis-connected from the PCB), I find that pin5.0 and pin7.0 i.e. AGND are not showing short
but a resistance of 100 ohm within them. Again DGND pin3.0 and AGND pad at the bottom shows a resistance of 72 ohms
I have not powered on the chip yet but i want to know whether is this normal behavior or characteristics of the chip.
Please reply urgently as we are stuck in our development due to this strange behavior.