• Questions about HMC860, HMC976, HMC1060

    Hi,

    I will be adding these parts to the ADIsimPower Linear Regulator design tool, I have some questions about these parts:


    HMC860:

    Can I short RDx to VRx to get 1.2V output? The datasheet says Vout 2.5V to 5.2V, is this because it's been tested only…

  • RE: pcb or datasheet for HMC767LP6CE

    On the HMC767 eval board apply 15V at TP4 to power the active loop filter op-amp (U5) and 5.5V at TP3 to power all other rails.

    The 5.5V voltage at the input of U2 (HMC976) is regulated down to the required 5V for the VCO.

    The Vtune input (pin 6) on…

  • RE: HMC1060: Need more current.

    Hi John,


    This generally is not recommended.  You can run into stability problems and the outputs are not at exactly the same voltage, it can cause allt he current to be supplied by one output. If you need 400mA at 3.3V, try maybe the HMC976.  Its a single…

  • hmc618a cascade and power supply

    I have a small doubt regarding the cascaded amplifier. In my design i want to have 55 dB gain, i am thinking to use 3 cascaded HMC618a because my RF signal input is less than -60dBm.

    1. do i use 3 cascaded HMC618a or i can use 2 cacade HMC619a and 1…

  • 12-20 GHz PLL Design - "Noise-like spurs"

    Hi All,

    I'm currently working on a PLL design that's to generate frequencies from 12 GHz to 20 GHz.To do so, I'm using a HMC733 VCO with a HMC704 PLL (with a HMC447 div-by-4 to feed the VCO reference back to the PLL). After tweaking the loop filter,…

  • RE: HMC733LC4B

    Hi, 

    The frequency of any free running (e.g. not phase locked) signal on a microwave VCO will drift; this is mostly due to temperature. Many of the HMC series VCO's are mounted to an aluminum backer plate. This backer plate not only adds a measure of ruggedness…

  • RE: how good should be power supply ripple for a VCO to operate properly

    Hello,

    Noise on the supply bias feeds, particularly the VTUNE port, will need to be as good as possible. Vcc needs to be very clean as well but but the impact isn't as severe since the modulation is a function of frequency pushing due to supply variation…

  • TAGS LIST: Power by Linear

    LTM8045
    LTM8049
    LTM4651
    LTM4661
    LTM4686
    LTM4676
    LTM4686-1
    LTM4676A
    LTM4675
    LTM4677
    LTM4678
    LTM8062
    LTM8061
    LTM8052
    LTM8026
    LTM8056
    LTM8064
    LTM8054
    LTM8055
    LTM4600
    LTM4600HV
    LTM4608A
    LTM4604A
    LTM8032