XRD4411 데이터 시트보기 (PDF) - Exar Corporation

부품명

상세내역

일치하는 목록

XRD4411

Single and Dual High Speed CCD Analog Signal Processors

Exar Corporation 

;5';5'

&$3$&,725 6(/(&7,21

9

 7\SH

9ROWDJH

5HJXODWRU

9

³ ³ 

92'

&&'

2XW

&&'

&$77

9

9,1

&,1

;5'

)LJXUH  &&' ,QSXW $SSOLFDWLRQ &LUFXLW

$ W\SLFDO &&' DSSOLFDWLRQ FLUFXLW LV VKRZQ LQ )LJXUH 

0RVW &&'V DYDLODEOH WRGD\ KDYH WKHLU RXWSXW UHIHUHQFHG

WR WKH SRVLWLYH VXSSO\ ZKLFK LV W\SLFDOO\  WR  YROWV 7KLV

KLJK YROWDJH LV QRW FRPSDWLEOH ZLWK WKH

;5';5' RSHUDWLRQ VR D '& EORFNLQJ

FDSDFLWRU LV QHHGHG WR FRXSOH WKH $& &&' VLJQDO WR WKH

;5';5' 7KH YDOXH RI WKLV FDSDFLWRU LV

GHWHUPLQHG E\ WZR IDFWRUV

 7KH PD[LPXP GURRS DOORZDEOH RQ D SL[HO RU OLQH

DQG

 7KH PLQLPXP WLPH QHHGHG WR UHVWRUH DQ\ FKDUJH

GXULQJ WKH EODFN OHYHO VDPSOH

7KH LQSXW OHDNDJH RI WKH ;5';5' DORQJ ZLWK

ERDUG OHDNDJH GHWHUPLQHV WKH DPRXQW RI GURRS ZKLFK ZLOO

EH SUHVHQW LQ WKH ILQDO FLUFXLW 7KH PD[LPXP DOORZDEOH

GURRS LV GHWHUPLQHG E\ WKH W\SH DQG DPRXQW RI SL[HOE\

SL[HO RU OLQH FRUUHFWLRQ XVHG DQG W\SLFDOO\ UDQJHV IURP D

IHZ PLOOLYROWV WR D IHZ KXQGUHG PLOOLYROWV 7KH PLQLPXP

YDOXH RI &,1 FDQ EH IRXQG E\

& L G ô  ,1PLQ

/($.

9

GW

ZKHUH ,/($. LV WKH OHDNDJH FXUUHQW DW WKH LQSXW RI WKH

;5';5' DQG ERDUG OHDNDJH G9 LV WKH

PD[LPXP DOORZDEOH GURRS DQG GW LV WKH WLPH UHTXLUHG WR

KROG WKH EODFN OHYHO YROWDJH SULRU WR FRPSOHWLQJ DOO WKH

VLJQDO OHYHO VDPSOHV )RU H[DPSOH LQ D JLYHQ V\VWHP

UXQQLQJ LQ OLQH PRGH DQG DVVXPLQJ WKDW WKH OHDNDJH

FXUUHQW LV Q$ WKH DFFHSWDEOH GURRS LV P9 DQG WKH

WLPH WR VFDQ RQH OLQH DSSUR[  SL[HOV DW  0636 LV

PV 7KH PLQLPXP FDS YDOXH LV

ô &,1PLQ

Q$

9



 0+]

   ³

7KH PD[LPXP YDOXH RI WKH FDSDFLWRU LV GHWHUPLQHG E\ WKH

DPRXQW RI WLPH UHTXLUHG WR FKDUJH LW WR WKH 9=(52 OHYHO

GXULQJ WKH EODFN OHYHO SRUWLRQ RI WKH &&' VLJQDO 7KHUH DUH

JHQHUDOO\ WZR FDVHV WKDW QHHG WR EH UHYLHZHG LQ WKH

V\VWHP WR LQVXUH WKDW WKLV ZLOO RFFXU XQGHU DOO FRQGLWLRQV

7KH ILUVW UHTXLUHPHQW LV WKDW WKH YDOXH RI WKH FDSDFLWRU EH

VPDOO HQRXJK VR WKDW DQ\ FKDUJH ORVW GXULQJ WKH WLPH WKDW

WKH EODFN OHYHO VLJQDO LV VDPSOHG WR WKH WLPH WKH LQSXW

VLJQDO LV VDPSOHG FDQ EH UHVWRUHG WR WKH FDSDFLWRU GXULQJ

WKH QH[W EODFN OHYHO VDPSOH SHULRG 7KH IROORZLQJ HTXDWLRQ

FDQ EH XVHG DV DQ H[DPSOH RI KRZ WR GHWHUPLQH WKH

PD[LPXP FDSDFLWRU VL]H JLYHQ WKH WLPH RI EODFN OHYHO

VDPSOLQJ DFFXUDF\ UHTXLUHG GURRS SHUFHQWDJH RI IXOO

VFDOH DQG WKH WRWDO LPSHGDQFH RI WKH ;5';5'

DQG WKH &&' RXWSXW EXIIHU

   &,1PLQ

ÆW626 Æ5287 59,1ÉÉ

,1 '5223 ²,QÆÆ$FFXUDF\ [ 9 )XOO 6FDOH É Æ9

ÉÉ

'XH WR WKH UHODWLYHO\ KLJK RXWSXW LPSHGDQFH RI PDQ\

: &&'V N  D VLPSOH WUDQVLVWRU EXIIHU LV QHHGHG LQ

287 PDQ\ LQVWDQFHV WR ORZHU 5  $OWKRXJK DOPRVW DQ\

VLPSOH WUDQVLVWRU HPLWWHU IROORZHU ZLOO ZRUN D 313 EXIIHU

PDLQWDLQV WKH SRVLWLYH VXSSO\ DV D UHIHUHQFH DQG SURYLGHV

EHWWHU VXSSO\ UHMHFWLRQ RI DQ\ QRLVH SUHVHQW RQ WKH &&'

92' VXSSO\

7KH VHFRQG FDVH LQYROYHV GXULQJ SRZHU XS RU

LPPHGLDWHO\ SULRU WR SHUIRUPLQJ D VFDQ ,Q WKLV FDVH WKHUH

PD\ EH D ODUJH YROWDJH WKDW QHHGV WR EH VWRUHG RQ WKH

FDSDFLWRU ZKLFK PD\ WDNH ORQJHU WKHQ QRUPDO WR FKDUJH

FRPSOHWHO\ 7KLV SUREOHP FDQ EH DOOHYLDWHG E\ VLPSO\

UXQQLQJ PXOWLSOH QXPEHUV RI GDUN VLJQDO VFDQV RU SDUWLDOO\

VFDQQLQJ WKH &&' RQO\ WKURXJK WKH EODFN OHYHO SL[HOV

7KXV JLYLQJ DGGLWLRQDO WLPH IRU WKH LQSXW FDSDFLWRU WR

UHDFK LW·V ILQDO YDOXH SULRU WR SHUIRUPLQJ D QRUPDO LPDJH

VFDQ

7KH ILQDO YDOXH RI &,1 VKRXOG EH VOLJKWO\ VPDOOHU WKDQ WKH

YDOXH FDOFXODWHG DERYH EXW QRW VPDOOHU WKDQ WKH PLQLPXP

YDOXH FDOFXODWHG HDUOLHU ,I WKLV LV QRW SRVVLEOH WKH RXWSXW

LPSHGDQFH RI WKH &&' VKRXOG EH UHGXFHG E\ DGGLQJ D

VLPSOH EXIIHU RU LQFUHDVH WKH EODFN OHYHO FODPS WLPH E\

SDUWLDO VFDQQLQJ DV GHVFULEHG HDUOLHU 7KLV LV QRUPDOO\ QRW

UHTXLUHG

5HY 



Share Link: