[time-nuts] External clock for Analog to Digital Converter inGPS Rx front-end

[Dr Bruce Griffiths]

Bilal Amin wrote:
>> Hi John and Bruce,
>>
>> Thank you for your ideas. Now I have a much better picture for the 
>> experiment using the comparator. Now, my only concern is a noise generator. 
>> I have searched and found out that all the commercially available now 
>> generators are very expensive and some what out of my price range.
>> What would you guys suggest for a noise generator? Do you think generating 
>> noise using a zener diode circuit is a good idea? Or any cheap noise 
>> generators are available in the market. Any one has any experience? As I am 
>> working in 8Ms/s zone, therefore the noise generator should be of high 
>> specs.
>> I have a signal generator (Agilent Tech. 8648A). I can use the PM option in 
>> this signal generator to get the results, but again the only problem is a 
>> noise generator which I can use at the modulating input of the signal 
>> generator to modulate the RF signal.
>>
>> Cheers
>>
>> Bilal
>>
>>     
Bilal

You may also want to look at:

http://pdfserv.maxim-ic.com/en/an/AN3469.pdf

Bruce