Tx LO LEAKAGE CALIBRATION ( Question )

No, We don't set DAC to be at 0dBFS.

Are you facing any issue, if so please share more details.

Hi vanitha 

We reviewed the relevant description in UG992 and noticed the statement below.
Since we are using a customized board, we would like to reconfirm the External LO calibration procedure.

What does “maximum Tx output signal of 7 dBm (CW)” mean?
Does it refer to the required transmit power during the calibration, or is it simply indicating the maximum allowable Tx output level for the external loop?

Since the attenuation in our external loop can be fully controlled, we would like to clarify this point.

The Tx output power is simply an indication that it can generate 7dBm. User can always operate at the Tx level that they need and user must ensure that the ORX input power will not exceed '-16dBm' maximum input level.

John69 said:

What does “maximum Tx output signal of 7 dBm (CW)” mean?
Does it refer to the required transmit power during the calibration, or is it simply indicating the maximum allowable Tx output level for the external loop?

Hi vanitha 

Thanks. Could you clarify how much transmit power is actually generated during the External LO calibration process?
Or, alternatively, how can we optimize the External LO calibration?
From the loopback configuration, I understand that we should avoid feeding more than −16 dBm into the ORx (which is the minimum attenuation requirement).

John69 said:

Could you clarify how much transmit power is actually generated during the External LO calibration process?

The maximum output power would be  +7dbm.

• Ensure that the external LO signal frequency would be twice that of the desired LO frequency of operation.
• Enable the External LO calibration bit as part of the initial calibration.

Refer to "External Tx LO Leakage Initial Calibration" section from UG for more details.

Please let me know if you are facing any issue while doing the External LO calibration.