SMD Crystal oscillator

knutolai · Post by **knutolai** » Sun Jan 20, 2019 6:57 am

Does anyone have a recommendation for a 32768Hz SMD package crystal for clocking the FV1? Any special reason to use the cylinder style crystal?

ice-nine · Post by **ice-nine** » Mon Jan 21, 2019 3:13 am

I have used many SMD oscillators before but the cylinder ones are 1/3rd the price so I stick with the cylinder ones.

knutolai · Post by **knutolai** » Mon Jan 21, 2019 5:08 am

Yeah I've done some looking around and the cylinder is much cheaper. Wonder why..

The reason I ask is that I'm looking to have my boards with all components PCBA assembled at a boardhouse.

FUCHSAUDIO · Post by **FUCHSAUDIO** » Mon Jan 21, 2019 10:57 am

I've been doing SMD plug-in cards. All parts are SMD except the crystals, mostly due to price, but the circuit is also touchy about the crystal types, so I figured I would stick with an available watch crystal and it's worked fine.

knutolai · Post by **knutolai** » Wed Jan 23, 2019 5:37 am

I see. Guess I'll stick around with the cylinder crystal. Not that much extra work...

mportnoy · Post by **mportnoy** » Fri Jan 25, 2019 8:11 am

How about Abracon's new line of SMT crystals? I've spec'ed one for my current project. Footprint is a tiny bit larger than 1206.

https://www.mouser.com/ProductDetail/81 ... 6632.768KT

igorp · Post by **igorp** » Mon Jan 28, 2019 7:08 am

we tried several, they had problems with reliability and washing in ultrasonic bath, so we are using micro controller clock instead of crystals.
The bonus is variable sample rate. 48kHz, 22 kHz, etc

Spin Semiconductor

SMD Crystal oscillator

SMD Crystal oscillator

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Re: SMD Crystal oscillator