[sdiy] XR2206 temeperature stability within +/- 5%

[Ullrich Peter]

If you need something real stable then have a look at this one:
https://pdf1.alldatasheetde.com/datasheet-pdf/view/53673/FAIRCHILD/ML2035.html

Appnote:
https://ae6pm.com/Application_Notes/Fairchild/AN-42025.pdf

You can buy it here:
https://www.mojotone.com/amp-parts/Ics_1/ML2035-Serial-Input-Programmable-Sine-Wave-Generator

But attention: seems that this spart is now obsolete.
https://www.mouser.at/ProductDetail/ON-Semiconductor-Fairchild/ML2035CP?qs=9to%2FKJHdxlDOY6%252B7gaxJLA%3D%3D
==> So good for your own lab tools but nothing that has to go into series production...

Ciao
Peter

http://www.ullrich.at.tt

________________________________________
Von: Synth-diy <synth-diy-bounces at synth-diy.org> im Auftrag von Jean-Pierre Desrochers <jpdesroc at oricom.ca>
Gesendet: Donnerstag, 2. Juli 2020 17:09
An: 'SYNTH DIY'
Betreff: [sdiy] XR2206 temeperature stability within +/- 5%

I need a pure sine wave generator adjustable from 10Hz to 60Hz  at around 5v
peak.
The adjusted frequency should stay stable within +/- 5% temperature wise.
The project inside metal enclosure could have temp of up to around +40deg C.
I have a bunch of XR2206 VCO IC on hand to use.
I wonder if the best capacitor to be used here would be
A polystyrene type for temperature stability.. (??)
I'll use 1% metal film resistors for the rest of circuit..


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