Inspired by Ulrich's lead regarding the high resolution TDC, I asked the Acam US rep for a quote on the TDC GP2. As Ulrich indicated they are not too expensive: $28 quantity 1, $26 quantity 10. Sounds great. Temperature coefficient isn't quoted but it will be considerable - presumably can be corrected in software.
For me the catch seems to be that they are packaged in a QFN-32. The pin spacing is 500 microns and the open space between the solder pads is only 200 microns. Perhaps I am too timid but this sounds like trouble for manual soldering, that's assuming the low cost PCB suppliers could make the appropriate solder mask. Any comments from the experienced? Acam makes a dandy evaluation board, the ATMD-GPX, but for this they want $2298. Oh well. Brooks ----- Original Message ----- From: "Ulrich Bangert" <[EMAIL PROTECTED]> To: "'Discussion of precise time and frequency measurement'" <time-nuts@febo.com>; "'Magnus Danielson'" <[EMAIL PROTECTED]> Sent: Thursday, June 29, 2006 11:41 Subject: Re: [time-nuts] Linear Interpolator Hi Stephan, if you need a ps resolution time interval counter for use in a project of your own, why not simply go out and buy you one? For example here http://www.acam.de/index.php?id=105 They are not that expensive because they are made to be married with cheap sensors. _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
