I have had some good success working with Connor-Winfield for short run, tighter spec parts as a private individual under the sales column of "samples". Just tell them what you want to do, and be upfront about your actual quantities, and don't be in a rush - it's not good Karma leading a sales person on with the idea of a big future sale only to tell them you're done with the handful you already have. It wastes their time and energy. I told CW I'd take what I could get to build the parts, not rejecting scrap crystal rather than demanding virgin before they started and told them that I could wait until they had time in their process rather than forcing it through.
Nothing with a dual frequency output from a monolithic component, but for the application (a custom board for an RPi CM4 with coaxial S/PDIF audio out) I GPS disciplined the audio master clock (24.567MHz), and then align the system clocks to that oscillator so that the PLLs stay within 1/3U and don't have to resync in the MCU or other bus components (54MHz for core clock, 25MHz for network clock), and as a result buffers never filled up or ran dry. My AP2722 has about an equivalent clock quality (little better, but tired), so I am in a place where some of the digital artifacts measured are going to be a fight between the noise floor of the test device and the test equipment. -TS On Mon, Jan 10, 2022 at 12:54 PM <[email protected]> wrote: > Date: Mon, 10 Jan 2022 08:26:26 +0000 (UTC) > From: Norman Reitz <[email protected]> > Subject: [time-nuts] High precision OCXO supplier for end costomers > To: Discussion of Precise Time and Frequency Measurement > <[email protected]> > Message-ID: <[email protected]> > Content-Type: text/plain; charset=UTF-8 > > Hi, everyone, > I am looking for suppliers of high-quality OCXO in 10 Mhz (sine / square) > and 25 Mhz sine wave output. I can only find changes below my quality > requirements for phase noise at Mouser or Digikey. E.g. a 10Mhz should be > better than -120dbc @ 1Hz (-140dbc @ 10Hz) - a 25mHz better than -115 > [email protected] want to use them in high quality audio application. > Unfortunately, the minimum order quantities of the providers that I have > found are not available for private customers - or you only sell with proof > of use or a trade license. Since i dont want to start a business in space > or defence-business, this is a problem for me. Do you have a tip or contact > person who also does business with non-lucrative end customers? I am > already aware that the quality of OCXO cannot be obtained for 100 bucks. > best regards > Norman > _______________________________________________ time-nuts mailing list -- [email protected] -- To unsubscribe send an email to [email protected] To unsubscribe, go to and follow the instructions there.
