GSM-Forum - Max 3232 in old universal box

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foufou

11-07-2003 00:50

Max 3232 in old universal box

i have old universal box based whit Max 232
can i change just Max 232 whit Max 3232
or i nned other change in the box, if yes
please shemas for univirsal box whit Max 3232
thanks for all replay

SPUnlock_SK

12-01-2003 09:47

you may change MAX232 to MAX3232 but you must change supply from 5V to 3V because MAX3232 is 3V IC

foufou

12-01-2003 09:50

how to make
shematic please

mr_x4you

12-01-2003 21:40

Wrong !! 3232 can be powered between 3,6 and 5v !!! replace 232 with 3232 and change also pump capacitors to 0,1uF. If you supply 3232 with 5v, your peak on tx will be 3,6v, if you supply with 3,6 peak will be 3 V.

foufou

12-02-2003 09:46

i change just 10uF capacitors to o,1uF?
or all pump capacitors 10uF(4ps) + 47uF(1p) + 470uF(1p) ?
big thanks for replay

cniky

12-03-2003 05:20

replace just 10uF capacitors with 0,1uF.

foufou

12-03-2003 07:53

Quote:

Originally posted by cniky
replace just 10uF capacitors with 0,1uF.

big thanks;)

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