[time-nuts] LTC6957 Low Phase Noise Buffer/Driver
Bob Camp
lists at rtty.us
Wed Apr 17 16:14:33 UTC 2013
Hi
The EL16 is pretty much the standard "go to" part for a lot of ECL
conversion stuff. It's commonly thought to be pretty good.
Bob
-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of EWKehren at aol.com
Sent: Wednesday, April 17, 2013 10:20 AM
To: time-nuts at febo.com
Subject: Re: [time-nuts] LTC6957 Low Phase Noise Buffer/Driver
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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