5.333 Volt for Roland Filters

[Joachim Verghese]

On Fri, 14 Jun 1996, Haible_Juergen#Tel2743 wrote:

> > Can anyone tell me this is a good idea for a 5.333 volt, as in Roland's
> > 303-filter, power supply?????
> 
> Would have to double check this first, so this is just a blind shot guess:
> Looks like a good reference voltage for a 5-bit DAC for 1V/8ve.

Yes, that's right. The 5.333V supply is for the CMOS latch that together
with some selected resistors forms a 6-bit DAC for CV generation.
[ 5.333V * 12 / (2^6) = 1.000V ]

For the filter, this voltage is not critical at all (as long as it
remains reasonably constant), it just serves as a mid-supply rail in
between the main 0V and +12V rails.

-joachim