[time-nuts] LTC6957 Low Phase Noise Buffer/Driver

[EWKehren at aol.com]

In some of my projects I like to use the MC10EL16. Does any one have  an 
opinion on it?
Bert Kehren
 
 
In a message dated 4/17/2013 9:31:57 A.M. Eastern Daylight Time,  
davidwhess at gmail.com writes:

On Wed,  17 Apr 2013 07:26:46 -0400, Bob Camp <lists at rtty.us>  wrote:

>On Apr 16, 2013, at 9:51 PM, Richard (Rick) Karlquist  
<richard at karlquist.com> wrote:
>
>> On 4/14/2013 7:48 AM,  Brian Davis wrote:
>>> Not sure if it's already been mentioned,  but Linear has introduced a 
new
>>> part that looks interesting  :
>>> 
>>> LTC6957 Low Phase Noise  Buffer/Driver
>>>  http://www.linear.com/product/LTC6957-1
>> 
>> This is VERY  interesting, especially the low noise PECL output.  I have
>>  never seen any ECL device ever come close to that noise level.
>> It  would be interesting to see how they did that.
>> 
>
>The  description from their tech guys is "Very high gain front end. It's a 
 saturating amp rather than a comparator." 

What criteria do they use to  distinguish the two?  Application?
Differential inputs and  outputs?

I am not surprised that it would have lower jitter than ECL if  the
later lacks an independent external reference.

I have been  looking into low jitter triggers for sampling systems
recently and will  probably end up using a discrete differential
amplifier driving ECL  logic.
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