DN1 Datasheet, PDF (1/2 Pages) Copal Electronics – Push Button Control of Digital Potentiometers

+,:0.556;,+5
3XVK%XWWRQ&RQWURORI'LJLWDO3RWHQWLRPHWHUV
'3ZLWKDQ,QFUHPHQW'HFUHPHQW,QWHUIDFH
&KXFN:RMVODZ'LUHFWRURI$SSOLFDWLRQV(QJLQHHULQJ
7KHUH DUH D QXPEHU RI ZD\V RI SURJUDPPLQJ GLJLWDO SRWHQWLRPHWHUV7KH EHVW WHFKQLTXH GHSHQGV RQ WKH '3·V
W\SHRILQWHUIDFHDQGLWVDSSOLFDWLRQ
7KLV 'HVLJQ 1RWH GLVFXVVHV WKH SXVK EXWWRQ FRQWURO RI '3 ZKLFK KDYH DQ LQFUHPHQWGHFUHPHQW LQWHUIDFH LQ
DSSOLFDWLRQVZKHUHWKHUHLVQRHPEHGGHGSURFHVVRU,QVWHDGWKH'3LVSURJUDPPHGXVLQJSXVKEXWWRQVZLWFKHV
WRJHQHUDWHWKHFRQWUROVLJQDOVIRUWKH83'1,1&DQG&6LQSXWV )RUWKRVHDSSOLFDWLRQVZKHUHWKHSURJUDPPLQJ
RI WKH '3 LV DQ RQJRLQJ UHTXLUHPHQW WKH SXVK EXWWRQ VZLWFKHV DQG WKH LQWHUIDFH FLUFXLWU\ ZLOO EH SDUW RI WKH
DSSOLFDWLRQ)RU WKRVH DSSOLFDWLRQV ZKHUH WKH '3 ZLOO EH SURJUDPPHG RQO\ RQFH GXULQJ SURGXFWLRQ WHVWLQJ WKH
VZLWFKHVDQG WKHLULQWHUIDFH ZLOO EH LQ DQ H[WHUQDO FRQWUROOHU XQLW 7KH FRQWUROOHU XQLWFRQWDLQLQJ WKH SXVK EXWWRQ
VZLWFKHVLVW\SLFDOO\FRQQHFWHGWRWKH'3XVLQJSLQVFDEOHDQGDFRQQHFWRURUDEHGRIQDLOVWHVWV\VWHP
7KH FLUFXLW LQ )LJXUH  LV D ORZ FRVW ORZ FRPSRQHQW FRXQW LPSOHPHQWDWLRQ RI D SXVK EXWWRQ FRQWUROOHU $ 6367
83'1 VZLWFK SURJUDPV WKH GLUHFWLRQ RI WKH SRW·V ZLSHU DQG WZR PRPHQWDU\ FRQWDFW 63'7 ,1&5 DQG 6725(
VZLWFKHVSURJUDPWKHLQFUHPHQWDQGVWRUHIXQFWLRQV7KHPRPHQWDU\FRQWDFWVZLWFKHVDUHGHERXQFHG
7KH,1&5VZLWFKHQDEOHVDORZIUHTXHQF\FORFNZKLFKDGYDQFHVWKHZLSHURQHSRVLWLRQHYHU\IDOOLQJHGJHRIWKH
FORFN7KHFORFNLVHQDEOHGDVORQJDVWKH,1&5VZLWFKLVKHOGGRZQDQGLWVIUHTXHQF\LVURXJKO\GHWHUPLQHGE\
I z5_&_$UHVLVWRURIN7DQGDFDSDFLWRURIM)SURGXFHVDPHDVXUHGFORFNIUHTXHQF\RI+]7KH
RVFLOODWRUUHTXLUHVD1$1'JDWHZLWK6FKPLWWWULJJHULQSXWV+&W\SH
7KH6725(VZLWFKLQLWLDWHVDSRVLWLYHSXOVHWRWKHFKLSVHOHFWOLQH2QWKHOHDGLQJHGJHRIWKLVSXOVHWKHFXUUHQW
ZLSHUVHWWLQJRIWKHSRWHQWLRPHWHULVVWRUHGWRQRQYRODWLOHPHPRU\7KHSXOVHZLGWKLVGHULYHGIURPWKH5_DQG&_
GLIIHUHQWLDWRU DQG LV URXJKO\ GHWHUPLQHG E\ 3:z5_ &_$ UHVLVWRU RI N7 DQG D FDSDFLWRU RI M) SURGXFHV
DPHDVXUHGSXOVHZLGWKRIMVHF
5_5_DQG5_DUH WKH SXOOGRZQ DQG SXOOXS UHVLVWRUV IRU WKH LQFUHPHQW FKLS VHOHFW DQG XSGRZQ '3 LQSXWV )RU
¶SURJUDP RQFH· DSSOLFDWLRQV DOO LQSXW FRQWURO VLJQDOV PXVW KDYH HLWKHU SXOOXS RU SXOOGRZQ UHVLVWRUV ZKHQ WKH
SURJUDPPHULVGLVFRQQHFWHG7KHYDOXHVRIWKHSXOOXSDQGSXOOGRZQUHVLVWRUVDUHLQWKHN7UDQJH
9
83'1
5
,1&5
6725(
&
5
83'1
,1&5
5 ^&6
9
5
&
5
‹E\1,'(&&23$/(/(&7521,&6&253
&KDUDFWHULVWLFVVXEMHFWWRFKDQJHZLWKRXWQRWLFH
)LJXUH3XVK%XWWRQ&RQWUROOHU

'RFXPHQW1R5HY$