• MDS with DDC?

    I'm not sure if I'm in the right section here -- please move this post if not.

    Can someone tell me what the minimum detectable signal (MDS) should  be using a digital down converter (DDC)?  Assume I have a 14-bit A/D  with 74 dB SNR which feeds…

  • AD9361 MDS, Sensitivity, and EVM

    How do I determine the MDS and sensitivity of the AD9361 and in general a receiver based on a non-ideal IQ demodulator?  For instance sensitivity S=-174 +NF +10log(BW) + S/N of detector to meet BER.  But this assumes an ideal IQ demodulator.  So if my re…

  • Determining minimum RF input power (MDS) for HMC218BMS8GE mixer

    In the data sheet for the HMC218BMS8GE there is no No Noise Figure (NF). How would one determine the minimum required RF input power (dbm) for usable operation as a down converter mixer?

    • hmc218b-879330.pdf

  • I can not write to REG_OFFSET AD719x

    I can not write to REG_OFFSET AD7195.
    I am writing 0x807600, later I read 0x800000 (should read 0x807600).
    I read that before you write to REG_OFFSET ADC needs to be translated into Idle mode (MD = 010) - does not work.
    What am I doing wrong?

     

    My code…

  • RE: Start problem AD7195

    I can not write to REG_OFFSET.
    I am writing 0x807600, later I read 0x800000 (should read 0x807600).
    I read that before you write to REG_OFFSET ADC needs to be translated into Idle mode (MD = 010) - does not work.
    What am I doing wrong?

    My code:

    // MD(000…

  • RE: Can we use ccache with VDSP++?

    Hi Nishanthi,

    I'm making some progress on the ccache front. But one ccblkfn option that doesn't work with ccache is -MM. I set -MD as an additional option, but I get the following error:

    cc3106: {D} warning: Option `-MM' overrides option `-MD…

  • RE: International Customers?

    Yes, Momentum Data Systems (MDS) works with a wide-ranging international clientele—

    from small-volume, high performance AV brands to mass-market Tier 1 entities seeking

    readily available time to market solutions or unique software development tools…

  • RE: What is the receiver senstivity of AD9361

    Minimum detectable signal (MDS) is -174dBm/Hz + 10*LOG10(BW) + NF[dB]

    Minimum input power that can be received is MDS + SNRmin[dB]

    NF is about 2-3dB over that frequency range.

  • LTC 2291 Timing Diagram for multiplexed digital output

    Hello all,

    I have got a question to the timing diagram for the multiplex digital output bus timing for the LTC2291 on page 14.

    There are two delay's for the multiplexed timing diagram: tD = CLK to DATA Delay and tMD =mux to data delay.

    Now my question…

  • Question for ASDP21489 FIR/IIR

    Hi

    I'm testing ADSP-21489 for audio processing(iir,fir)

    Q:

    1. What does coefficient modifier mean?

    2. What does input data modifier mean?

    3. What does output data modifier mean?

    these are in page.1240 (HW reference)

    what does value put in TCB ?

    …