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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…
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…
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…
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…
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…
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…
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…
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…
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…
