AD Direct Digital Synthesis Modules. The circuit is taken directly from the example in the AD datasheet. and uses a MHz clock and a 40MHz output. Part Number: AD, Maunfacturer: Analog Devices, Part Family: AD, File type: PDF, Document: Datasheet – semiconductor. Introduction. This module described here is based on ADS, a CMOS, MHz, and Complete DDS. Synthesizer. The AD is a highly integrated device.

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The routine is given the required frequency Fout and finds delta Phase, the datasheet equation tells you what Fout will be for a given delta Phase:. All help will be greatly appreciated.

Hi Jeff, I used one to make a programmable frequency generator. I just used your code to make a nice CW qrpp beacon: Have you considered making this an audio sweep generator? Therefore, I’ve limited the available frequency dataseet from 10 Hz to adtasheet MHz in the software. Your email address will not be published. HamRadio guys used this board apparently with good luck. Please Select a Language. Then it is the third pin from the right on the bottom row.

I also have a B, mine is fed by a Trimble Thunderbolt. Can I connect the module to the COM port? You code was the starting point! Datadheet model has been scheduled for obsolescence, but may still be purchased for a limited time.

You can see following links in the code comments area. Orient the board so that the pot is on the right, the OSC on the left.

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AD Datasheet and Product Info | Analog Devices

This is just above the audio range so you can use almost any audio amplifier schematic maybe with some modifications.

Hi, thanks for your great work, and sharing the code.

Synchronized Synthesizers Aid Multichannel Systems. It turned out to be a speck of something on the Arduino UNO itself. Ugly at best, even after a decent filter…. Here is a post I made about it and another toy I got. Anyway, If what I am saying is correct then I will be contacting the supplier for the replacement of the module.

Arduino – AD Waveform Generator

Due to environmental concerns, ADI offers many of our products in lead-free versions. Since my last comment, I have received my AD boards and had it running on the bench in about 5 minutes! I have at least 1 says 3.

Without any research whatsoever I went ahead and added 2 to a recent order of some other components I needed. Pin D9 connects to the display’s LED pin via a ohm resistor. This can be one of 4 stages: Hi N8RO, I wanted to throw a notice out that some of the boards coming out of china have a 3. These modules are supposed to get up to 30 MHz and some claim 40 MHz.

Testing an eBay AD9850 DDS module with Arduino Uno

Here are couple of pictures: I can send you the schematic and the code if you want. There was a speck of dirt or metal on his Arduino, making it inoperable. I am using interrupts to get the timing, and for the 80ms between the pulses I am try to send 0hz to the AD or I do a master reset. Hope usefull to others. Package Description The package for this IC i.


Lately I was trying to output a pulse using 40khz with a pulse width of 0. No matter what I tried, I could not get this to work. I have been playing with the Mega and want to build the antenna analyser project with the AD.

The frequency tuning, control, and phase modulation words ad950 loaded into the AD via a parallel byte or serial loading format. I get some idea how it work now. Datashert I thought, what if my unit left the factory not setting R13 Trim Pot properly duty-cycle.

Over the 10 Hz to 2. Next in an emergency I set up Arduino-Scope. It is datawheet to note the scheduled dock date on the order entry screen. Does it support up to 50MHz output? Sorry the picture links did not work but there no way I know in this forum to edit the post.

My setup is very basic. He looked over everything. On some other version of similar module, for example, http: The model is currently being produced, and generally available for purchase and sampling.

Thanks for your testing! Sir, kindly suggest me any site or way to get solution of the problems arises here.

The various ranges specified are as follows: I can email you the correct code upon request: While it is working I am not getting a clean pulse.