[sdiy] 4049/4069 linear mode

Dave Manley dlmanley at sonic.net
Sun May 31 06:22:04 CEST 2009


Scott Gravenhorst wrote:
> Derek Holzer <derek at umatic.nl> wrote:
>   
>> First off, are these essentially the same chip (aside from pin outs)
>>     
>
> 4049 has an asymmetrical output current characteristic, 4069 has a symmetrical output
> current characteristic.
I wasn't aware of this tidbit.  This could be important if you want to 
maintain the symmetry of a high frequency clock in a digital circuit, 
but for use in linear mode at audio frequencies, does this result in an 
audible difference?

-Dave



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