Bilal, How about using one of the "spread-spectrum" microprocessor clock generator IC's? These add a pseudo-random jitter to the clock signal so the interference from the equipment is slightly spread causing the equipment to pass EMC testing by causing an apparent reduction in the peak due to the bandwidth of the test receiver.
Robert. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bilal Amin Sent: 02 March 2007 06:35 To: [email protected] Subject: Suspected Spam: [time-nuts] External clock for Analog to Digital Converter in GPSRx front-end Rx front-end Hi Everyone, I am working on Jitter in Analog to Digital Converters(ADCs) for GPS receiver front-end. I am trying to setup an experiment to see the effects of jitter in real time ADCs. I have an ADC evaluation board with external clock input for sampling (i.e Sampling clock). Now I want to produce a self created jittery signal to see the effects of jitter in ADC. Can anyone out there have any idea(s) how I can produce a real time clock signal with "variable jitter" for the input of external clock? Producing a simple clock signal (i.e. without jitter) is straight forward with the help of any signal generator but a clock signal with "variable jitter" is a problem. Thanks for your help. Cheers Bilal _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts -------------------------------------------------------- Genetix Limited - Queensway, New Milton, Hampshire, BH25 5NN Registered in England No. 2660050 www.genetix.com Any opinions expressed in this email are those of the individual and not necessarily Genetix Ltd (Genetix) or any company associated with it. This email and any files transmitted with it are confidential and solely for the use of the intended recipient. If you are not the intended recipient or the person responsible for delivering to the intended recipient, be advised that you have received this email in error and that any use is strictly prohibited. If you have received this email in error please notify Genetix by telephone on +44 (0)1425 624600. The unauthorised use, disclosure, copying or alteration of this message is strictly forbidden. This mail and any attachments have been scanned for viruses prior to leaving Genetix network. Genetix will not be liable for direct, special, indirect or consequential damages as a result of any virus being passed on, or arising from alteration of the contents of this message by a third party. -------------------------------------------------------- _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
