In the datasheet, I found the following description.
"The input to this device should be Ac-coupled"
Can I provide the input signal without ac-coupled capacitor?
what is the any restriction to connect DC coupled signal to RFIN?
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HMC465LP5
Production
The HMC465LP5(E) is a GaAs MMIC PHEMT Distributed
Driver Amplifier packaged in leadless 5x5
mm surface mount package which operate between
DC and 20 GHz...
Datasheet
HMC465LP5 on Analog.com
In the datasheet, I found the following description.
"The input to this device should be Ac-coupled"
Can I provide the input signal without ac-coupled capacitor?
what is the any restriction to connect DC coupled signal to RFIN?
Hi Ogura.Isao,
The RFIN must have an AC coupling capacitor. The RFIN is fed directly to the gate of a FET. Any dc applied at RFIN will change the quiescent bias of the amp and potentially damage the device. Please review the simplified pin schematics on page 5 of the datasheet.
Regards,
Jim B