[sdiy] SSM2044 Frequency Range

[Michael E Caloroso]

SSM had a history of supplying ICs (they were fab-less and contracted
IC out fabrication) that are not compliant to their specs.  SCI had to
do 100% verification testing for their P-5s because of this.  The
reject rate got bad enough that they switched to CEM.

Yes I know the 2044 was not used in the P-5.

MC

On 9/2/15, Tim Ressel <timr at circuitabbey.com> wrote:
> Hi,
>
> I just built an SSM2044 based directly on the datasheet schematic. I'm
> using 12 volt rails. The frequency range is less than expected. The most
> I get is about 130:1, and when I adjust it for 1 volt/octave the range
> is about 100:1. Even when I run it on 15 volt rails I get about 370:1.
> This is far short of the 1000:1 the datasheet talks about.
>
> Any ideas?
>
> --
> --Tim Ressel
> Circuit Abbey
> timr at circuitabbey.com
>
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>