[time-nuts] LTC6957 internal architecture

David C. Partridge david.partridge at perdrix.co.uk
Tue May 26 08:51:26 UTC 2015


With all this talk of the LT6957 I'm wondering if there's interest in a re-spin of my frequency divider with one of these at the front end instead.

Regards,
David Partridge 
-----Original Message-----
From: time-nuts [mailto:time-nuts-bounces at febo.com] On Behalf Of Bruce Griffiths
Sent: 26 May 2015 00:40
To: time-nuts at febo.com
Subject: [time-nuts] LTC6957 internal architecture

The following patent hints that the LTC6957 front end probably consists of several cascaded long tailed pair differential amplifier stages each with a selectable bandwidth set by capacitors shunting the collector load resistors. : US8319551 The input limiter is in effect a Collins style limiter with selectable bandwidth for each stage to reduce the noise with respect to a comparator which typically has several high gain wide bandwidth cascaded differential amplifier stages.

Bruce


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