• HMC850 Interface conversion schematic (single-ended input / single-ended output)


    I checked 1:2 higspeed (10Gbps ~) buffer of HMC850. but My application need to single-end I/O Interface. 

    Could you please advice converter output scheme? 

  • HMC830 output SNR performances

    Hi to all,

    I have integrated the HMC830 on a test signal generator to generate test signal in the frequency range 50-350 MHz.

    My test board amplify the output of the HMC830 and filter the output to remove harmonics.

    I shall obtain signal with high SNR…

  • RE: Request mesuring data about jitter values of HMC744LC3 & HMC850LC3

    The worst case total jitter value for HMC744 and HMC850 is Tj = Dj + 2nRj = 6 + 0.2*7  = 7.4ps and cascaded is 10.4ps max for 1e-12 BER. Typically this value would be Tj=3.4ps for a single part and 4.8ps for cascaded.

  • RE: Inner impedance value of HMC744LC3,HMC850LC3,HMC745LC3 and HMC851LC3

    Hi Se-woong

    Inner impedances of the parts are as follows(they might change with part to part):

    For HMC850/851: AP,AN,BP,BN : ~55ohms / DP,DN : ~60ohms

    For HMC744745: AP,AN,BP,BN : ~60ohms / DP,DN : ~65ohms

    The traces on the PCB are always 50ohms.

  • How to interpret measurements on "Bottom View" drawing of HMC850LC3 fanout buffer

    why is there two measurements given for some of the parameters? 

    For example, on pin 13, there are two vertical numbers out of brackets (.014 and .009) and two numbers in brackets (.36 and .24). I understand that the numbers in brackets is the mm version…

  • 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.