• HMC794 out phase

    I'm trying to figure out the HMC794 output phase relationship with the input reference after the cycling the power supply or disable/enable the chip, the new output phase will be same?random?or a fixed shift? Hope to find an answer.

    Thanks!

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    ga…

  • HMC705 / HMC794 frequency divider

    Trying to figure out the min. input duty cycle the products will respond to.  I have a very low duty cycle pulse train @ 100MHz that I need to divide down.  Pulse width is on the order of 200fs.

    Thanks,

    Tim

  • RE: Divider-by-3 duty cycle

    Hi Gil,

    The /3 of the HMC794 does produce a 50% output.    However, it looks like your 25M-100M input frequency is below the HMC794's min input frequency

    R Counter outputs are typically not 50%. 

    You can also look at the LTC6954.  This device has a /3…

  • RE: Questions about HMC794LP3E

    U9 (HMC1060) converts 5.5V input to 5V power (JP4) and a 5V pull-up voltage (JP1) for the HMC794 digital inputs.  They can use an external 5V power supply.  Pull JP4 and JP1 to disconnect U9. 

  • HMC794LP3E s-parameters?

    Is it possible to find s-parameter files for HMC794? Thanks

  • RE: Doubts in datasheet of HMC794LP3E Eval Schematics

    The input and output impedances of the HMC794 divider are not 50 Ohm.  No attempt was made to match the impedances to 50 Ohms on the evaluation board.

    Concerning T6 & T7, if you look at the Evaluation PCB pictorial diagram on page 9 of the datasheet you…

  • Phase Noise Floor of PFDs

    Hello,

    I have made use of many PFD products from Hittite in various applications. In most of them, I try to push hard to get the best phase noise performance from these parts. In datasheets of various PFDs (e.g. HMC3716, HMC439 etc.), it is indicated…

  • FAQ: HMC Microwave Frequency Dividers by Analog Devices

    Question: Why should I consider using an Analog Devices Microwave Frequency Divider?

    Answer: With the acquisition of Hittite Microwave Corporation, Analog Devices acquired one of the most comprehensive, microwave frequency divider product lines available…

  • TAGS LIST: RF and Microwave

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    HMC7056G
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    HMC7056AG
    HMC642G
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  • 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.

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