Re: [time-nuts] crystal (or MEMS) oscillators with low hysteresis

2012-09-07 Thread Bob Camp
;t lag can be a hassle even at 1C/ minute Bob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Jim Lux Sent: Friday, September 07, 2012 4:10 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] crystal (or ME

Re: [time-nuts] crystal (or MEMS) oscillators with low hysteresis

2012-09-07 Thread Jim Lux
On 9/7/12 12:20 PM, Bob Camp wrote: Hi I'm guessing that power is also an issue, so cheap OCXO's are out. If that's true, I believe you are already at the "cheap vs good" inflection point with the cell phone TCXO. At < $2 they are pretty tough to beat. Just the fancy crystal in something better

Re: [time-nuts] crystal (or MEMS) oscillators with low hysteresis

2012-09-07 Thread Bob Camp
g to give you a big boost in the price. Bob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Jim Lux Sent: Friday, September 07, 2012 11:36 AM To: Discussion of precise time and frequency measurement Subject: [time-nuts] crystal (o

[time-nuts] crystal (or MEMS) oscillators with low hysteresis

2012-09-07 Thread Jim Lux
Consulting the hive-mind here on the list.. If one were looking for small/cheap/mass produced oscillators which have decent phase noise.. what kind has the most repeatable frequency vs temperature curve. The usual 1ppm TCXO has about 0.1 ppm hysteresis, while other less "stable" oscillato