• RE: HMC863ALC4 and HMC752ALC4 supply voltage

    Hi, IBMOTO,

                            Both  the HMC863ALC4 and HMC752 ALC4 are FET amplifiers. They have a gate power supply  and a drain power supply. The gate power supply controls the bias point and must always be turned on first. The gate voltage for both amplifiers…

  • HMC863ALC4 gain issue

    I am using HMC863ALC4, It is working fine. If I put the board inside a metal cavity the gain drops or any metal wall close to the chip affects the gain. Can somebody explain?

  • HMC863ALC4 Eval schematic


    I use many analog Device equipment such as Transmitter (ADRV9008-2), Upconverter (ADMV1013), Amplifier PA (HMC863ALC4) ....

    I want to see behavior of my RF Chain. 

    so I decide to do a simulation in order to compare real results and simulation results…

  • HMC863ALC4 Eval Board "K" Connectors

    The datsheet for the HMC863ALC4 lists J1 and J2 as "K" Connectors, but not the sex. What is the sex of these connectors?

  • HMC863ALC4 Performance issue: Output power 3 dB less than specified


    we currently design a radar using HMC863ALC4.

    The problem is that we could not get the spefied output power. It is about 3 dB less.

    @24GHz with 6V we should see 28dBm bt could only measure 25dBm.

    Is anybody out there who has experience with this…

  • HMC863ALC4 的VDD对地电阻小的问题


  • Relation between VDIG and VDD of HMC920


    I am using HMC920 to bias HMC863ALC4.


    1)In HM920 what is the relation  between VDD and VDIG?

    2) Do I need to apply voltage to VDIG as below?

    3) Is there a reference circuit for the connection of HMC920 and HMC863ALC4?


    Hi and thank you.

    We have purchased several components such as ADRV9008-1, ADRV9008-2, ADMV1013, ADMV1014, HMC863ALC4 .......

    We want set up a transmission and reception platform.

    But to be sure of our results, we decide to run a simulation on ADS to…

  • RE: Query

    This part is EAR99. The attached RFIC selection guide lists the ECCN codes for all of ADI's RF products.


  • RE: 36GHz RF oscillation signal source

    You need a PLL which drives a frequency doubler which drives an amplifier. Possible choices might be ADF4371 (PLL),  HMC1105 (frequency doubler) and HMC7229 (amplifier). These are not the only choices.