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Showing 166 results View by: Thread Post Sort by
    Answered
  • DAC37J84: about DAC3XJ8XEVM-SCH_D SYSREF TERMINATION

    user5983069
    user5983069
    Resolved
    Part Number: DAC37J84 Other Parts Discussed in Thread: LMK04828 , , DAC38J84 Hi We try to connect SYSERF SIGNAL between LMK04828 and DAC37J84 as LVPECL DC coupling connection which shows in DAC3XJ8XEVM-SCH_D SYSREF TERMINATION. But we cannot understand…
    • Resolved
    • over 1 year ago
    • Data converters
    • Data converters forum
  • DAC37J84: NCO at 400MHz

    Urs Steck
    Urs Steck
    TI Thinks Resolved
    Part Number: DAC37J84 I have a DAC37J84 running with Fs at 984MHz. I need to generate a 400Mhz carrier. I can do this just fine using the coarse mixer of the DAC with FS/2 (and inputting a carrier at -92MHz), but when I try to use the NCO it does not…
    • over 2 years ago
    • Data converters
    • Data converters forum
  • DAC37J84: DAC37J84 Xilinx Vivado project example

    Kiman Ha
    Kiman Ha
    TI Thinks Resolved
    Part Number: DAC37J84 Hi, Can I find the Xilinx Vivado project example for the DAC37J84EVM board? Thanks, Kiman
    • over 2 years ago
    • Data converters
    • Data converters forum
  • DAC37J84: Improving Noise Floor

    Kazuki Itoh
    Kazuki Itoh
    TI Thinks Resolved
    Part Number: DAC37J84 Other Parts Discussed in Thread: LMK04828 , TEST Hi team, Could you please suggest me how to improve the NF? My customer has tried the things below, but it was not effective: - Add decoupling cap on VCC - Stop inputting SYSREF after…
    • over 2 years ago
    • Data converters
    • Data converters forum
  • DAC37J84: Low output voltage swing with and without NCO enabled

    Astrome Tech
    Astrome Tech
    Part Number: DAC37J84 Hi, I am using DAC37J84 custom board with NCO enabled bin file which gives me the output (at 50 Ohm termination load) as per the below mentioned figure. As per the waveform the voltage swing is around 296mV peak to peak (single…
    • over 2 years ago
    • Data converters
    • Data converters forum
  • DAC37J84: Small Fraction Delay FIR Filter

    Astrome Tech
    Astrome Tech
    TI Thinks Resolved
    Part Number: DAC37J84 I am generating two 100 MHz signal from DAC37J84 EVM channel A and B and measuring these in an oscillioscope. As shown in the below figure, I (channel A from DAC) is in green and Q (channel B from DAC) is in blue. There are certain…
    • over 2 years ago
    • Data converters
    • Data converters forum
  • DAC37J84: Small Fraction Delay FIR Filter Bandwidth

    Astrome Tech
    Astrome Tech
    TI Thinks Resolved
    Part Number: DAC37J84 I am using the DAC in 250 MHz BW with 4x interpolation with the speed limit options as highlighted in the image below- 1. If I use the small fraction delay FIR filter will it reduce the BW further? 2. Is there any frequency response…
    • over 2 years ago
    • Data converters
    • Data converters forum
  • DAC37J84EVM: problem reading register with DAC37J84 GUI

    Juan Salvador Prat
    Juan Salvador Prat
    TI Thinks Resolved
    Part Number: DAC37J84EVM Other Parts Discussed in Thread: TEST , DAC38J84 Hi, I am experiencing the same problems described in this forum http://e2e.ti.com/support/data-converters/f/73/t/815771?DAC37J84EVM-DAC3XJ8X-GUI-v-1-2-Link-Configuration-Issue. When…
    • over 2 years ago
    • Data converters
    • Data converters forum
  • DAC37J84: DAC not recognising bcbc characters in CGS

    Kiran VG
    Kiran VG
    TI Thinks Resolved
    Part Number: DAC37J84 I am interfacing DAC37J84 EVM with Xilinx ZCU102 Zynq board. I am seeing in chipscope that FPGA is sending "bcbc" characters for doing CGS. But DAC is not recognising "bcbc" characters and toggling SYNC accordingly.…
    • over 2 years ago
    • Data converters
    • Data converters forum
  • DAC37J84: Some of the K values are not working

    Kiran VG
    Kiran VG
    TI Thinks Resolved
    Part Number: DAC37J84 I used DAC37J84 EVM with Xilinx Zynq ZCU102 board. Below is my DAC configuration. LMFS: 2441 DAC input rate: 250MSPS Lane rate: 10Gbps Interpolation: 4x I observed that if I set K = 5 or 10 or 20 or 28, I am getting output. For each…
    • over 2 years ago
    • Data converters
    • Data converters forum
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