Could to change ADL5387 VPB voltage that can to change I/Q output bias voltage?
The ADL5382 change VPB voltage that I/Q will to change. Have same function at the ADL5387 ?
You could change the I/Q output bias voltage by changing the VPB as Qui mentioned. The change of the I/Q output bias voltage will not cause the gain down. No. 17 and No.18 pins of ADL5387 are tied together outside the chip.
Yes, the ADL5387 has the same function as the ADL5382 when it comes to controlling the I/Q common mode signal. The common mode voltage can be adjusted by VPB - 2.8 V.
Thank you for your help. So I can change VPB ( ADL5387 No. 17 Pin) to control the I/Q output bias voltage, right ? Because the document is changed ADL5382 VPB ( No. 17 Pin) to control I/Q output bias voltage. If I modify the I/Q output bias voltage will cause gain down ?
I got it. Thank you for your help.
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