[time-nuts] Digital Mixing with a BeagleBone Black and D Flip Flop
Bob Camp
kb8tq at n1k.org
Thu Oct 16 10:59:47 UTC 2014
Hi
I wonder what they are using for the “lpf / zero crossers” in that version.
Bob
On Oct 16, 2014, at 4:07 AM, Bruce Griffiths <bruce.griffiths at xtra.co.nz> wrote:
> http://trs-new.jpl.nasa.gov/dspace/bitstream/2014/36903/1/01-2617.pdf
>
> among other things illustrates a modified approach to the offset generator by replacing the intermediate phase locked VCXO with a bandpass filter.
>
> Bruce
>
>
>
> On Thursday, October 16, 2014 1:03 PM, Bert Kehren via time-nuts <time-nuts at febo.com> wrote:
>
>
>
> Take a look at Potato chips yes Potato I have used them with good results
> Bert Kehren
>
> 330551715157
>
>
> In a message dated 10/15/2014 6:44:47 P.M. Eastern Daylight Time,
> kb8tq at n1k.org writes:
>
> Hi
>
> Most ECL families have more trouble with 1/F noise than fast silicon
> saturated logic. That makes them poor candidates for this sort of thing.
>
> Bob
>
> On Oct 15, 2014, at 9:13 AM, Gerhard Hoffmann <dk4xp at arcor.de> wrote:
>
>> Am 15.10.2014 um 11:29 schrieb Bruce Griffiths:
>>> Typically a 74HC164 shift register has internal cycle to cycle sampling
> jitter of about 4ps or so when used as a mixer, a 74AC device has about
> 1/4 of this jitter or around 1ps. Faster CMOS devices have even less internal
> jitter.
>>
>> Hi,
>> do you have any data on MC100EP51 & friends? In the datasheet they seem
> to claim
>> sth. in the low ps also, which would be disappointing in comparison to
> 74AC or 74LVC
>>
>> regards, Gerhard
>> _______________________________________________
>> time-nuts mailing list -- time-nuts at febo.com
>> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
More information about the Time-nuts_lists.febo.com
mailing list