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Sorry I was long away from this board.
Yes connect a resistor 100Ohms or lower between the transformer and the filter.
Should work good.
You could also connect only a resistor after the filter. But this is in cnnection to your filter design the current source sees the imput impedance of your...
I don't know the range of your output frequency, but its clearly that there are spurs. But the SFDR should be same or better than in the datasheet.
The voltage compiliance of the output mean, that a the IOUT and the /IOUT Pin of the device is able to swing around +/- 0,5V from AVVD.
So if you...
In a recently design I use the AD9954 and I archieve the wanted more then 70dB SFDR. I think the most problems are in the output circiut design. I use an center tapped transformer and an elliptic lowpass to get this good result over a wide output frequency range.
Maybe you are not working in the...
c++ builder problem
Yes you need this dll's in your program-directory or system if you haven't installed c++ builder on this computer.
CP3240MT.DLL
BorlandMM.DLL
Maybe you also need DLL's for the Packages you used for linking the Program.
Kuehnsen
Added after 4 minutes:
Or you could...
Re: Best way to design a sine wave generator with 3 sync out
Thanks for your responses.
I did it digitally, actual I use 3 Direct Digital Synthesis Chips from AD like described before. I need 1..10 MHz Accurrate Output and so my recent solution with 50MHz-Clock is very noisy!
I plan to use...
Re: Best way to design a sine wave generator with 3 sync out
With a 20MHz Low-Pass all is well. But how can I syncronize the 3 sine outputs. It should work over a wide temprature range. Maybe a Delay locked loop? But I want to keep at the simplest solution.
Re: Best way to design a sine wave generator with 3 sync out
Right I mean a crystal ocillator for instance.
I can't use an low-pass-filter cause after this filter the 3 sources are not in phase!
pwm dc converter
Don't be supprised but note 1 means the PortD and PortE Registers. The 16F876 has not enough pins to have this to ports. So the registers have an adress but you can nothing do with this cause they are not physically there!
But you can use the other Ports or change to the next...
Actually I got a problem in designing a good sine wave generator!
I got the folllowing needs:
3 syncronized outputs!
Output-Frequency 1 - 10 MHz
changeabe in amplitude and phase
low noise outputs
My task is to build an fast digital configurable sine source with this 3 outputs. Every output has a...
The device must be able to hold the sda line down for this minimal time to aknowledge to the master!
What is your task, maybe you can find some nice routines for i2c-handling or use a controller with i2c-if for programing.
Hello all,
Actually I work on the design of a miniaturized board with many analog and digital parts on it. But my task is not fully done I still need to integrate an temperature sensor on it. But there is not enough space on this board for a voltage reference and an temperature sensor (i.e...
Re: PLC & PIC
If you mean with PLC a programable logic device like an FPGA.
I can't repply with yes or no cause it belongs to your task.
I think the biggest difference is that an processor like a pic works sequientiel. (Command after command) an FPGA realize the implemented logic. (Inputs will...
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