03
$33/,&$7,21 127(6
3RZHU 6XSSOLHV DQG *URXQGLQJ
'LJLWDO 2XWSXWV
5HIHU WR
)LJXUH
IRU GHWDLOV RQ WKH GDWD DYDLODELOLW\ WLPLQJ
7KH GLJLWDO RXWSXWV VKRXOG QRW GULYH ORQJ ZLUHV RU EXVHV
7KH
FDSDFLWLYH FRXSOLQJ DQG UHIOHFWLRQV ZLOO FRQWULEXWH QRLVH WR WKH
FRQYHUVLRQ
7KH RXWSXW HQDEOH SLQ 2(
VKRXOG QRW EH OHIW
$9
DQG '9
VKRXOG EH FRQQHFWHG WR WKH VDPSOH SRZHU
VXSSO\ VRXUFH
DQG '9
DQG UHIHUHQFH YROWDJH 9
#%
9
#
ZLWK
2
) DQG
2
) FDSDFLWRUV WR *1' SODFHG DV FORVH WR WKH
FKLS DV SRVVLEOH
$*1' DQG '*1' SLQV DUH FRQQHFWHG LQWHUQDOO\ WKURXJK WKH
3VXEVWUDWH $*1' DQG '*1' SLQV VKRXOG EH FRQQHFWHG
WRJHWKHU DV FORVH WR WKH FKLS DV SRVVLEOH
)LJXUH
XQFRQQHFWHG ,I LW LV QRW FRQWUROOHG E\ DQ DFWLYH VLJQDO LW PXVW EH
WLHG WR JURXQG
)6
W
3:+
W
3:/
&/.
6DPSOH ´1µ
1
1
3,3(/,1( '(/$<
1ï
1ï
1ï
1ï
'$7$ 1
9
2
)
P
)
'$7$
&ORFN
P
)
$QDORJ
,QSXW
P
)
:
$*1'
$9
''
'9
'9
&/.
9
576
'%
'%
9
57
'%
03
'%
'%
9
,1
'%
'%
9
5%
'%
9
5%6
2(
'*1'
W
'/
)LJXUH 'DWD $YDLODEOH 7LPLQJ
'LJLWDO
2XWSXWV
'\QDPLF 5HIHUHQFH &RQWURO
7KH 03 DOORZV IRU G\QDPLFDOO\ DGMXVWHG 9
:KHQ WKLV LV GRQH 9
FHUWDLQ SHULRG
7KH $' FRQYHUVLRQ LV GRQH LQ D WZRVWHS PHWKRG 'XULQJ WKH
ILUVW FORFN SHULRG WKH 06% FRPSDUDWRU EDQN FRPSDUHV WKH 9
57
DQG 9
5%
KDYH WR EH NHSW VWDWLF GXULQJ D
57
DQG 9
5%
,1
ZLWK WKH UHIHUHQFH YROWDJH VWULQJ LQ RUGHU WR GHWHUPLQH LQ ZKLFK
)LJXUH 7\SLFDO &LUFXLW &RQQHFWLRQV
VXEUDQJH WKH H[DFW 9
,1
OLHV
'XULQJ WKH VXEVHTXHQW FORFN
SHULRG DQ /6% FRPSDUDWRU EDQN FRPSDUHV D VXEUDQJH RI WKH
7KH $QDORJ ,QSXW
:KHQ GHVLJQLQJ ZLWK WKH 03 WKH IROORZLQJ SRLQWV FDQ
KHOS RSWLPL]H SHUIRUPDQFH
'ULYLQJ WKH DQDORJ LQSXW ï 7KH LQSXW LPSHGDQFH FDQ EH
UHSUHVHQWHG DV D VZLWFKHG FDSDFLWRU W\SH LQSXW FLUFXLW LH WKH
LQSXW LPSHGDQFH FKDQJHV ZLWK WKH SKDVH RI WKH LQSXW FORFN
)LJXUH
9
5()
WR WKH 9
,1
7KXV WKH UHIHUHQFH LQSXWV KDYH WR EH VWDEOH
GXULQJ WZR FRPSDUH F\FOHV 7KLV LPSOLHV WKDW ZKLOH WKH $'& LV
FORFNHG ZLWK )6 WKH FRQYHUVLRQ RQO\ RFFXUV DW D UDWH RI )6
(YHU\ VHFRQG
VDPSOH DQG UHVXOWLQJ GDWD PXVW EH GLVFDUGHG
EHFDXVH WKH UHIHUHQFH FKDQJHV GXULQJ LWV FRQYHUVLRQ
7KH UHIHUHQFH LQSXWV 9
57
DQG 9
5%
KDYH WR KDYH VHWWOHG WR
ZLWKLQ /6% DW OHDVW QV EHIRUH WKH ULVLQJ HGJH ZKLFK RFFXUV
DIWHU WKH VDPSOLQJ LQVWDQW
FRQVWDQW XQWLO W
7KH UHIHUHQFH KDV WR EH NHSW
VKRZV
WKH
DQ
HTXLYDOHQW
LQSXW
FLUFXLW
EH
,Q PDQ\
WUHDWHG
DV
DSSOLFDWLRQV
LQSXW
LPSHGDQFH
FDQ
$3
QV
DIWHU WKH VHFRQG ULVLQJ HGJH 6HH
)LJXUH
IRU WLPLQJ GHWDLOV 7KH GLJLWDO GDWD RI WKH 1 1 1
FDSDFLWLYH )RU IDVW VLJQDOV DQG D KLJK GULYLQJ LPSHGDQFH D
ZLGH EDQGZLGWK RS DPS LV UHFRPPHQGHG
,W LV LPSRUWDQW WR QRWH WKDW RS DPSV KDYH LQGXFWLYH RXWSXW
LPSHGDQFHV DW KLJK IUHTXHQFLHV ZKLFK LV D FRQVHTXHQFH RI
WKH HPLWWHU LPSHGDQFH RI WKH W\SLFDO SXVKSXOO RXWSXW VWDJH
7KH
UHVXOWLQJ
WUDQVLHQW
ULQJLQJ
VKRXOG
EH
GDPSHG
E\
HWF VDPSOHV DUH LQYDOLG LI WKH UHIHUHQFH LV FKDQJHG HYHU\
VHFRQG FORFN F\FOH 7KH GDWD IRU WKH 1 1 1 HWF VDPSOHV
DUH YDOLG
&/.
1
1
1
LQVHUWLQJ D UHVLVWRU LQ VHULHV ZLWK WKH $'& LQSXW ï W\SLFDOO\
DERXW
:
6HH
QV W
$3
5()(5(1&(
'
287
1ï
)LJXUH
7KH H[DFW YDOXH PD\ EH REWDLQHG
IURP WKH RS DPS PDQXIDFWXUHU·V GDWD VKHHW
6LJQDOV VKRXOG QRW H[FHHG 9
ï9
QV
1ï
1ï
9
RU JR EHORZ *1'
$OO SLQV KDYH LQWHUQDO SURWHFWLRQ GLRGHV WKDW ZLOO
SURWHFW WKHP IURP VKRUW WUDQVLHQWV
6HH 1RWH $EVROXWH
0D[LPXP 5DWLQJV
)LJXUH '\QDPLF 5HIHUHQFH &RQWURO
5HY
EXAR [ EXAR CORPORATION ]
