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  • DAC38RF83: DAC Temperature

    Daniel Malouin
    Daniel Malouin
    TI Thinks Resolved
    Part Number: DAC38RF83 Tool/software: I find the temperature reading low for a junction temperature. When I query the DAC38RF83 register 0x06, the TEMPDATA field returns a value around 42C. Is it normal that the temperature is so low when the DAC transmits…
    • 9 months ago
    • RF & microwave
    • RF & microwave forum
  • DAC38RF83: JESD Alarms and VCO range value

    Daniel Malouin
    Daniel Malouin
    TI Thinks Resolved
    Part Number: DAC38RF83 Tool/software: Is it normal that I have to modify for each of the cards that we have with a DAC38RF83, a different VCO range value (page 4, register 0x33: PLL Configuration 2 register)? I use the value 0x5128 for one DAC (PLL_VCO…
    • 9 months ago
    • RF & microwave
    • RF & microwave forum
  • Answered
  • DAC38RF83: Is "Toggle RESETB pin low then high" necessary?

    user6293841
    user6293841
    Resolved
    Part Number: DAC38RF83 In datasheet 8.1.1 Start-up Sequence, "Toggle RESETB pin low then high." is showed. Is this necessary? To avoid unintended reset, I will not connect RESTB pin to any controller such as CPU or FPGA, and place a pull-up…
    • Resolved
    • over 1 year ago
    • RF & microwave
    • RF & microwave forum
  • Answered
  • DAC38RF83: Serdes PLL lock

    user6293841
    user6293841
    Resolved
    Part Number: DAC38RF83 There are 2 Serdes PLL lock indicators in SYSREF Alignment Circuit Alarms Register. ALM_SD0_PLL: Driven high if the PLL in the Serdes 0 block goes out of lock. ALM_SD1_PLL: Driven high if the PLL in the Serdes 1 block goes out of…
    • Resolved
    • over 1 year ago
    • RF & microwave
    • RF & microwave forum
  • DAC38RF83: High Phase Noise of DAC38RF83 with external reference

    porat yifrah
    porat yifrah
    TI Thinks Resolved
    Part Number: DAC38RF83 Dear forum members, We do have the problem of high phase noise when using the DAC38RF83/ We would like to get information where root cause of the high the phase-noise could be. Environment: 1. Input ref of 2560Mhz to…
    • over 2 years ago
    • RF & microwave
    • RF & microwave forum
  • Answered
  • DAC38RF83: SERDES Loss of Signal Detection Alarms

    user6293841
    user6293841
    Resolved
    Part Number: DAC38RF83 Our RF modulator product uses DAC38RF83 with parameters as below: LMFS = 2221 clock 2376MHz interpolation x18 Current Serdes Lane Rate =2640MHz This product gets register values of ALM_SD_DET(address = 0x04), SYSREF_ALIGN_R(address…
    • Resolved
    • over 2 years ago
    • RF & microwave
    • RF & microwave forum
  • DAC38RF83: Current consumption

    Nir Reuveni
    Nir Reuveni
    Part Number: DAC38RF83 Hi all My question is about the -1.8V connected to the dac. I see almost zero current consumption in the -1.8V DC (I verified that the voltage actually gets to the DAC), and I can't see any output frequency. I have another DAC…
    • over 2 years ago
    • RF & microwave
    • RF & microwave forum
  • Answered
  • DAC38RF83: optimize the RBD value

    user6293841
    user6293841
    Resolved
    Part Number: DAC38RF83 Other Parts Discussed in Thread: LMK04828 , I use a dac38rf83 with LMK04828 as the JESD204B clock generator and Intel Arria10 FPGA as JESD204B TX. JESD204B parameters are LMFSHd = 44210, K=32(Dual DACs, 1 IQ pair per DAC, 2 lanes per…
    • Resolved
    • over 3 years ago
    • RF & microwave
    • RF & microwave forum
  • Answered
  • RE: DAC38RF83: Minimum delay for SPI

    Moti Cohen
    Moti Cohen
    Resolved
    Hi Jim The answer solved my questions. Thank you and regards Moti
    • over 3 years ago
    • RF & microwave
    • RF & microwave forum
  • Answered
  • DAC38RF83: Phase noise?

    user5163865
    user5163865
    Resolved
    Part Number: DAC38RF83 Other Parts Discussed in Thread: LMK04821 Hi, When the NCO is set to 767MHz, a signal of about 53dBc (like phase noise) is generated from the modulated signal in the range of about 10MHz centered on the modulated signal of about…
    • Resolved
    • over 3 years ago
    • RF & microwave
    • RF & microwave forum
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