Measure high frequency up to 2GHz

[haohaodk46]

I want measure microcontroller to meaure high frequency up to 2Ghz.How can I measure it !thanks

 

[sivamani]

Micro controller can't work on 2GHZ.you can use dividers in between to down convert the frequency to MCU working range..

 

[haohaodk46]

Thank.I have use prescaler frequency IC.I use MC12079 but only divider 256 factor.I want divide down to measured frequency of microcontroller .what method you known ?

 

[upand_at_them]

2GHz / 256 = 7.8MHz, which is within the range of many MCUs. There are plenty of projects online that show how to use a PIC to measure up to 50MHz. If your 256 prescaler is used it would allow measurement up to 12.8GHz.

 

[haohaodk46]

My Project is measure a bandwidth frequency interval a time not a sigle frequency.And use FFT algorithm.Therefor i cảnt use couter to measure frequency.I want divider with factor higher than to work easy.Thanks!

 

[haohaodk46]

Do Anyone know divider frequency from 2Ghz down to 1-2 Mhz ?

 

[albbg]

I think you can use the internal divider of an inexpensive PLL (f.i. ADF4116) or a DDS (f.i. AD9956)