Hi Robert, I need to know the quantity of jitter I am adding to the clock signal. I don't think so this idea will work for that ?
Bilal ----- Original Message ----- From: "Robert Atkinson" <[EMAIL PROTECTED]> To: "Discussion of precise time and frequency measurement" <[email protected]> Sent: Friday, March 02, 2007 7:12 PM Subject: Re: [time-nuts] Suspected Spam: External clock for Analog toDigital Converter in GPSRx front-end Rx front-end > 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 > _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
