• ADF4351 differential output


    I would like to design a reflectometer which operates 400-650 MHz. Is it possible to use two differential outputs of ADF4351 for this job?

    One diffrerential output, such RF A-, is used for forward signal; other differential signal (RF A+) is used…

  • ADF4350 and ADF4351 evaluation board files

    ADF4350 and ADF4351 evaluation board files attached:

    • Gerber files
    • Schematic
    • Layout
    • Bill of Materials

    The schematic and layout were created in Mentor Graphics PADS. Get a free viewer here: http://www.pads.com/downloads/pads-pcb-viewer/

  • Interfacing ADL5375 with ADF4351: LPF design

    Dear supporter,

    on pag. 23 of ADF4351 datasheet I found the interfacing scheme between ADF4351 and ADL5375.

    Could you please suggest a LPF design to differentially interface the two devices when the ADF4351 is working with an 800 MHz RFout and a REF…

  • ADF4350 and ADF4351 Common Questions Cheat Sheet

    ADF4350 and ADF4351 common questions cheat sheet attached.

    • v1.2 - Improved description of Band Select Process.
    • v1.1 - Fixed formatting error on mobile devices.
    • v1.0 - Initial release. 10-Sept-2014.

  • ADF4351 Phase adjust in Integer mode


    I am trying to use the Phase adjust feature with the ADF4351 in Integer mode.

    First of all, the behaviour of the hardware setup is checked without phase adjustement. The board in use is the ADF4351 evalboard, with 10MHz external reference. PFD…

  • RE: ADF4351中Muxout引脚的输出

    The multiplexer output on the ADF4351 allows the user to access various internal points on the chip. The state of MUXOUT is controlled by the M3, M2, and M1 bits in Register 2 (see Figure 26). Figure 19 shows the MUXOUT section in block diagram form.

  • ADF4351 changes in R-Counter will yield different output Frequencies despite correct Int, Frac, Mod values

    Hello all,

    I am working with a custom designed receiver which uses the ADF4351 as its LO for downconversion. I followed the schematic used in the ADF4351 Eval board and wrote custom software to control the part using a Raspberry Pi. I can successfully…

  • CN0285(ADL5375+ADF4351) Modulator testing issue


              Customer use CN0285 EVB for OIP2 test by below condition.  They compare to ADL5375 datasheet that OIP3 under reasonable range as Figure 18. But OIP2 test value looks worse compare Figure 19. What are difference between datasheet testing condition…