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  • Setup for generation and post processing of a set of tones around 125 MHz

    TI Thinks Resolved
    Other Parts Discussed in Thread: DAC5681 , ADS5463EVM , DAC38J84 , 66AK2L06 , ADC12J4000 We are interested on the generation of a set of tones in I and Q components (i.e.: 10 tones, with possibility of tuning the frequencies separately) in the range 100-150MHz…

  • TSW1400+DAC5681 to generate a sweep frequency signal, from the 150M-250M

    I would like to use TSW1400+DAC5681 to generate a sweep frequency signal, from the 150M-250M. scan time of 8 Microsecond, triggered by an external pulse signal. I would like to confirm that an external pulse signal, triggering a sweep frequency, the…

  • DAC5681: Output Signal Coupling

    Other Parts Discussed in Thread: DAC5681 Hi, I'm designing a board with the DAC DAC5681. Reading the user guide in which there's the electrical drawing of the EVB, I need the balun transformer at the DAC output to have a single-ended 50 OHm net. This is…
    • OUT_Coupling.pdf

  • RE: TI recommendation

    For the DAC try: DAC3161, DAC12DL3200, DAC3171, DAC5681

  • DAC5681 problem getting a DLL Lock

    i have an FMC110 card that we have been trying to get a DLL lock on for quite sometime. The Clocking is as follows: the AD5917 sends us a 200MHz clock on a pin configured for the card, and the DAC gets clocked at 400MHz, bit clock of the OSerdes is at…

  • DAC5681 / INL,DNL, offset and gain drift

    Other Parts Discussed in Thread: DAC5681 Hello, INL, DNL , offset drift and gain drift of the DAC5681 is specified at the condition of over operating free-air temperature range. Will these parameters be improved at the narrow temperature range(for example…

  • RE: I need a high-speed DAC with very low residual 1/f phase noise

    Hi Whisp, DAC5671, DAC5681, DAC5688, DAC3484, are some of the device will meet requirements. Regards, Neeraj
    • Answered

  • DAC5681(z) FIFO_OFFSET register function seems not to match description

    Resolved
    Other Parts Discussed in Thread: DAC5681 , DAC3484 , ADS5400 , DAC5681Z Hello, The DAC5681 has an 8-deep FIFO in the datapath. Register "OFFSET1" allows one to select the reset position of that FIFO pointer in bits 2:0 of that register. The description in…
    • Resolved
    • Answered

  • Re: Multiplicative noise in DAC5681 output

    Resolved
    Luis, Take a look at the following app note. There is a section about using a 25 MHz reference. Perhaps you can just try the filter settings shown in there. http://www.ti.com/litv/pdf/scaa113 Second, I'm wondering what would happen if you changed your…
    • Answered

  • Config.5681 (DAC5681)

    Resolved
    Other Parts Discussed in Thread: DAC5681 Hi Hamza, For DAC5681,should I use default values defined in data sheet from page 19-23 except for Config0 and Config10? 1) freq < 125MHz , Config0=1F, other wise 5F 2) Config 10 varies with frequency accordingly…
    • Resolved

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