| Products > Test Equipment |
| AliExpress $30 35MHz-4.4GHz ADF4351 Touchscreen Signal Generator |
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| bb1:
Here is short report on the output signal waveforms and spectra of AliExpress touchscreen ADF4351 board. |
| bb1:
The lowest ADF5451 frequency permitted by AliExpress touchscreen is 35 MHz. Steady state spectrum near it is shown on attached picture. Another attached figure shows how output frequency is changed in first 80 uS after the output is enabled. |
| bb1:
The first picture attached here. |
| maximvs:
I wonder if it is possible to take out the 25Mhz crystal and always provide an external RF source. I have a 10Mhz. clock (GPS Sync), which has a very pure output, and I'd like to use that. My question is: I read the specs on the ADF4351 and it is not clear if the reference signal should be square wave or could be a sine wave. Any thoughts ? I might buy another unit and do a test but I'd like to hear what you guys think. |
| radiolistener:
There is more interesting ADF4351 development board on aliexpress: https://www.aliexpress.com/item/33032121416.html Two ADF4351 + IAM81008 + AD8307 + STM32F103C8T6 on the board. First ADF4351 is used as LO and second ADF4351 is used as tracking generator. Two ADF4351 allows to avoid spurs for bode plot. Can be used as signal generator, spectrum analyzer and tracking generator. Price is 24 USD. I just ordered one, it looks very interesting as a signal source and bode plot for 35M-4400M. |
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