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Power level of the no signlas in calibration

Category: Datasheet/Specs
Product Number: ADRV9002

Hi everyone,

I have a question on adrv9002

I know that an error occurs when a signal is input during ADRV9002 calibration.

So I designed rf switch (for trx switch) and rx vga.

There is about 90 dB isolation between ant and adrv9002's rx port when all off swtich and rx vga.

Usually, in this state, even if a small signal is input to the ant port, calibration is completed without error.

However, sometimes for various reasons (such as a large signal input or control miss of vga/sw or damage to the switch or etc.), a small signal enters the RX port and leads to calibration failure.

I wonder what dBm of 'no signals'

(i.e. how many isolation between ant and adrv9002's rxport should I have?)

Sincery,
JaeKyung.