• Question of HMC1190A VCC2 when unused IF2

    My customer is using only IF1P/N.

    So VCS2, IF2P/N, VBIASIF2, VGATE2, RF2, LOBIAS2, and RSV are all floated.

    However, PLL  is not locked.
    During debugging, when power is applied to VCC2, PLL lock is said to be locked.

    On the block diagram, VCO is expressed…

  • Question about RSV15 and RSV24 in HMC1190A

    The HMC1190A data sheet describes RSV15 and RSV24 as "Reserved. These pins are reserved for internal use; leave them floating."

    But, on the EVB schematic, it is as follows.
    1) RSV15: IF1EN => pull-down
    2) RSV24: IF2EN => pull-down, pull-up…

  • RE: Unused path pins connection of HMC1190A

    My customer is using only IF1P/N.

    So VCS2, IF2P/N, VBIASIF2, VGATE2, RF2, LOBIAS2, and RSV are all floated.

    However, PLL  is not locked.
    During debugging, when power is applied to VCC2, PLL lock is said to be locked.

    On the block diagram, VCO is expressed…

  • 请问HMC1190A芯片上电之后发热到烫手的程度是正常现象么?

    请问HMC1190A芯片上电之后发热到烫手的程度是正常现象么?我也是第一次调这款芯片,没看到芯片手册上说要在该芯片的外围电路上装散热装置。

  • RE: Maximum delay difference at IF out among HMC1190As

    Hi Sefa,

    Thank you for your reply.

    Yes, this inquiry is from the same customer with the link. We received the inquiry not only HMC1190 but also HMC1190A, again. I understand you don't have such data of HMC190A, too.

    Thanks & Regards,

    Akir…

  • RE: How to use for synchronous operation of multiple HMC1190As

    Hi Akira,

    The customer can experiment with the assertion time of the CHiP_EN trigger signal (highlighted below) relative to the reference clock. This might help find a sweet spot for DSM load timing on the customer platform. A lower PFD rate makes the…

  • Question about AD9642-250 input

    The customer wants to apply the HMC1190A output (IF1P / N) to the input (VIN +/-) of the AD9642-250.


    The customer wants to use differential BPF as below specification.
    Fc = 184.32MHZ
    BW = 100MHZ (114.32MHZ@-40dB / 254.32MHz@-40dB)

    How should I change…

  • RE: Serial port communication with HMC1190LP6GE using FT2232D and D2XX library

    Hi,

    For some time i have been trying to communicate with HMC1190A Eval Board with a simple C program and FTDI D2XX library. After following the HMC1190A datasheet time diagrams i succeeded in reading the REG 00 value (C7701A). My happiness lasted only…

  • RE: HMC625B Reliaiblity

    Hi,

    Here you go. Hope this helps.

    Warm Regards,

    Rachana

     PDF

  • TAGS LIST: RF and Microwave

    HMC928
    HMC929
    HMC931
    HMC932
    HMC933
    HMC934
    HMC935
    HMC247G
    HMC538
    HMC-C018G
    HMC-C025G
    HMC-C053G
    HMC-C584G
    HMC7056G
    HMC7054G
    HMC7053G
    HMC7056AG
    HMC642G
    HMC642AG
    HMC643G
    HMC644AG
    HMC647
    HMC647A