Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Measure high frequency up to 2GHz

Status
Not open for further replies.

haohaodk46

Member level 2
Joined
Apr 8, 2012
Messages
46
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,288
Activity points
1,601
I want measure microcontroller to meaure high frequency up to 2Ghz.How can I measure it !thanks
 

sivamani

Full Member level 5
Joined
Jan 30, 2007
Messages
318
Helped
46
Reputation
92
Reaction score
42
Trophy points
1,318
Location
Hyderabad
Activity points
2,709
Micro controller can't work on 2GHZ.you can use dividers in between to down convert the frequency to MCU working range..
 

haohaodk46

Member level 2
Joined
Apr 8, 2012
Messages
46
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,288
Activity points
1,601
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

Full Member level 2
Joined
Feb 26, 2010
Messages
131
Helped
21
Reputation
42
Reaction score
21
Trophy points
1,298
Location
Pennsylvania, U.S.
Activity points
1,942
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

Member level 2
Joined
Apr 8, 2012
Messages
46
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,288
Activity points
1,601
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

Member level 2
Joined
Apr 8, 2012
Messages
46
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,288
Activity points
1,601
Do Anyone know divider frequency from 2Ghz down to 1-2 Mhz ?
 

albbg

Advanced Member level 4
Joined
Nov 7, 2009
Messages
1,254
Helped
434
Reputation
868
Reaction score
389
Trophy points
1,363
Location
Italy
Activity points
9,478
I think you can use the internal divider of an inexpensive PLL (f.i. ADF4116) or a DDS (f.i. AD9956)
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top