Other Parts Discussed in Thread: FMC-DAC-ADAPTER , LMK04808 , DAC34SH84 , TRF3705 , LMK04806 , TSW30H84EVM We need connect the TSW30SH84EVM to FMC-DAC-ADAPTER to Xilinx Zynq702 Board. The FPGA_CLKP/N and EXT_DCLKP/N both work on 160MHz. The FPGA will…
Hello Martin,
It is possible that you may have damaged the modulator because it is sensitive to ESD damages. Since you have measured the output of the DACs directly and they looked OK, this further narrowed down the modulator being damaged.
If you…
Part Number: DAC34SH84 Other Parts Discussed in Thread: DAC34H84 , , DAC3484 , LMK04828 , CDCE62005
Hello,
We plan on having multiple FMC boards each having one DAC34SH84 on a single carrier board with FPGAs. The instantaneous bandwidth of the system…
Sarika,
It should be 100 Ohm diff, with 50 Ohm pull downs on each leg, not pull ups, on both ends of the filter. See attached schematics for example. One has a DAC connected to a TRF3705 and the other a TRF3722 modulator. Both cases are using 50 Ohm…
User,
Everything looks fine with the DAC. I would suggest using one GND plane. See attached for more info. I would also submit this to high speed amplifier forum to get their comments regarding the amplifier.
Regards,
Jim
2538.Schematic and Layout…
Ranjini,
I would suggest using a single ground plane and isolate the sensitive analog traces from the high speed digital traces. See the attached document for more guidelines.
Regards,
Jim
4530.Schematic and Layout tips.ppt
Ian,
I would suggest using a single ground for both. The key to this is to use good partitioning of the circuits located around the DAC and ADC. Do not have high speed digital traces in the same area as the analog inputs or the clock inputs, route sensitive…
Schematic and Layout tips.ppt slar089.zip Hsieh,
Place RN4-RN7 as close as possible to the ADC and place RN2, RN8, RN10 and the discrete resistors as close as possible to the buffer. I have also attached the layout files for our EVM and some board layout…
