you can do it with a lower freq xtal
if you overdrive a xtal oscillator you generate a series of harmonics -- just use a bandpass filter at 100MHz for a crystal whose frequency is an integer dividend of 100 MHz. (This is how I used to operate 50Mhz (6 meters) ham transmission with an 8.333 MHz crystal.
or you can buy an XO for the frequency in question.
http://www.mfelectronics.com/products/xo/
if you overdrive a xtal oscillator you generate a series of harmonics -- just use a bandpass filter at 100MHz for a crystal whose frequency is an integer dividend of 100 MHz. (This is how I used to operate 50Mhz (6 meters) ham transmission with an 8.333 MHz crystal.
or you can buy an XO for the frequency in question.
http://www.mfelectronics.com/products/xo/
sugano said:
The 100Mhz frequency is somewhat arbitrary, Kusonoki used a 50 MHz crystal, and Elso himself once said that any frequency > 45 Mhz could be suitable.
In my ASR I use a 80 MHz canned oscillator from a old server motherboard, but maybe I'll try different frequencies as I have several of them available.
Cheers
Andrea
Re: you can do it with a lower freq xtal
or you can buy an XO for the frequency in question.
http://www.mfelectronics.com/products/xo/ [/B][/QUOTE]
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Doing a serch for lowjitter XOs, one soon finds that the low jitter ones all hacve ECL or PECL outputs which appears lower than TTL.
What precisely are the differences?
or you can buy an XO for the frequency in question.
http://www.mfelectronics.com/products/xo/ [/B][/QUOTE]
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Doing a serch for lowjitter XOs, one soon finds that the low jitter ones all hacve ECL or PECL outputs which appears lower than TTL.
What precisely are the differences?
Jocko Homo said:ECL does not saturate, so it is devoid of problems like ground bounce that saturated stuff has. It is always on, and so the output swing will always be a small fraction of the rail voltage.
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Thanks Jocko; what then is comlementary PECL? And can these ECL and PECL chips be used directly in place of TTL for clockling transports and adc chips?
Pl explain also WE ARE DEVO
You never heard of DEVO ?!?!!? With Google it took me 1 sec.
http://www.freedomofchoice.com/devo/about.asp
DEVO
You jest, you only go to eleven?
http://www.diyaudio.com/forums/showthread.php?postid=281474#post281474
Jock Homo
they tell us that
we lost our tails
evolving up
from little snails
i say it's all
just wind in sails
are we not men?
we are DEVO!
we're pinheads now
we are not whole
we're pinheads all
jocko homo
are we not men?
D-E-V-O
monkey men all
in business suit
teachers and critics
all dance the poot
are we not men?
we are DEVO!
are we not men?
D-E-V-O
god made man
but he used the monkey to do it
apes in the plan
we're all here to prove it
i can walk like an ape
talk like an ape
do what a monkey do
god made man
but a monkey supplied the glue
we must repeat
o.k. let's go!
jean-paul said:
You jest, you only go to eleven?
http://www.diyaudio.com/forums/showthread.php?postid=281474#post281474
Jock Homo
they tell us that
we lost our tails
evolving up
from little snails
i say it's all
just wind in sails
are we not men?
we are DEVO!
we're pinheads now
we are not whole
we're pinheads all
jocko homo
are we not men?
D-E-V-O
monkey men all
in business suit
teachers and critics
all dance the poot
are we not men?
we are DEVO!
are we not men?
D-E-V-O
god made man
but he used the monkey to do it
apes in the plan
we're all here to prove it
i can walk like an ape
talk like an ape
do what a monkey do
god made man
but a monkey supplied the glue
we must repeat
o.k. let's go!
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