9 WR 9
參數(shù)資料
型號: XRT7298IWTR
廠商: Exar Corporation
文件頁數(shù): 13/16頁
文件大?。?/td> 0K
描述: IC LINE TX DS3/STS-1 E3 28SOJ
標(biāo)準包裝: 1,000
類型: 發(fā)射器
規(guī)程: DS3,E3
電源電壓: 4.75 V ~ 5.25 V
安裝類型: 表面貼裝
封裝/外殼: 28-BSOJ
供應(yīng)商設(shè)備封裝: 28-SOJ
包裝: 帶卷 (TR)
XRT7298
5HY
ABSOLUTE
MAXIMUM RATINGS
3RZHU 6XSSO\
WR 9
6WRUDJH 7HPSHUDWXUH
G&WRG&
9ROWDJH $W $Q\ 3LQ
9 WR 9'' 9
3RZHU 'LVVLSDWLRQ 62- 3NJ
P:
3RZHU 'LVVLSDWLRQ ',3 3NJ
:
,QSXW 9ROWDJH $Q\ 3LQ
9 WR 9'' 9
,QSXW &XUUHQW $Q\ 3LQ
P$
SYSTEM DESCRIPTION
B3ZS/HDB3 ENCODER
'DWD WR EH WUDQVPLWWHG LV LQSXW WR WKH HQFRGHU EORFN WR EH
HQFRGHG HLWKHU LQ %=6 RU +'% DV GHWHUPLQHG E\ WKH
VWDWH RI WKH '6676( SLQ ,QSXW GDWD IRUPDW FDQ EH
XQLSRODU RU ELQDU\ )RU ELQDU\ VLJQDOV 73'$7$ DQG
71'$7$ QHHG WR EH FRQQHFWHG WRJHWKHU H[WHUQDOO\ 7KH
OLQH FRGH XVHG IRU '6 LV %=6 ,Q WKLV PRGH HDFK EORFN
RI WKUHH FRQVHFXWLYH ]HURV LV UHPRYHG DQG UHSODFHG E\
RQH RI WZR FRGHV ZKLFK FRQWDLQ ELSRODU YLRODWLRQ 7KHVH
UHSODFHPHQW FRGHV DUH %9 DQG 9 ZKHUH % LQGLFDWHV D
SXOVH FRQIRUPLQJ ZLWK WKH ELSRODU UXOH DQG 9 UHSUHVHQWV D
SXOVH YLRODWLQJ WKH UXOH 7KH FKRLFH RI WKHVH FRGHV LV
PDGH VXFK WKDW DQ RGG QXPEHU RI % SXOVHV ZLOO EH
WUDQVPLWWHG EHWZHHQ FRQVHFXWLYH ELSRODU YLRODWLRQ 9
SXOVHV )RU ( IRUPDW WKH OLQH FRGH LV +'% 7KH
HQFRGLQJ UXOH RI +'% LV VLPLODU WR %=6 H[FHSW WKH
QXPEHU RI FRQVHFXWLYH ]HURV LV LQFUHDVHG WR IRXU EHIRUH D
FRGH UHSODFHPHQW FDQ WDNH SODFH 7KH UHSODFHPHQW
FRGHV LQ WKLV FDVH DUH 9 DQG %9
676 RSHUDWLRQ LV DFKLHYHG E\ SODFLQJ WKH SDUW LQ WKH
'6 PRGH DQG XVLQJ 0+] FORFNV /RJLF RSHUDWLRQ
IRU 676 LV WKH VDPH IRU '6
TRANSMIT ALL ONE SELECT
6HWWLQJ 7$26 KLJK FDXVHV FRQWLQXRXV $0, HQFRGHG V WR
EH WUDQVPLWWHG WR WKH OLQH ,Q WKLV PRGH LQSXW 73'$7$ DQG
71'$7$ DUH LJQRUHG ,I UHPRWH ORRS EDFN 5/223 LV VHW
KLJK 7$26 UHTXHVW LV LJQRUHG
REMOTE LOOP-BACK
6HWWLQJ 5/223 KLJK FDXVHV UHFHLYH 53'$7$ DQG
51'$7$ WR EH WUDQVPLWWHG WR WKH OLQH WKURXJK 77,3 DQG
75,1* 7KH GDWD UDWH LV GHWHUPLQHG E\ 5&/. ,Q WKLV
PRGH 73'$7$ DQG 71'$7$ DUH LJQRUHG
LOCAL LOOPBACK
6HWWLQJ //223 KLJK FDXVHV 73'$7$ DQG 71'$7$ WR JR
WKURXJK ERWK WKH HQFRGHU DQG WKH GHFRGHU ,Q WKLV PRGH
WKH WUDQVPLW VLJQDO 5&/.2 5326 DQG 51(*
FRUUHVSRQGV WR 7&/. 73'$7$ DQG 71'$7$
UHVSHFWLYHO\ 8QOHVV RYHUULGHQ E\ 7$26 UHTXHVW
73'$7$ DQG 71'$7$ ZLOO VWLOO EH WUDQVPLWWHG WR WKH OLQH
6HWWLQJ 5/223 DQG //223 KLJK VLPXOWDQHRXVO\ LV QRW
SHUPLWWHG
B3ZS/HDB3 DECODER
7KH GHFRGHU EORFN LV LQFOXGHG WR SHUIRUP %=6 RU +'%
GHFRGLQJ DV GHWHUPLQHG E\ WKH VWDWH RI WKH '6
676( SLQ ,Q WKH %=6 IRUPDW WKH GHFRGHU GHWHFWV
ERWK %9 DQG 9 SXOVHV DQG UHSODFHV WKHP ZLWK
GDWD ,I +'% GHFRGLQJ LV VHOHFWHG E\ VHWWLQJ WKH '6
676( SLQ ORZ %9 DQG 9 SXOVHV ZLOO EH GHWHFWHG
DQG UHSODFHG ZLWK FRGH ,Q ERWK FDVHV ELSRODU
YLRODWLRQ DQG FRGLQJ HUURUV ZKLFK GR QRW FRQIRUP WR WKH
FRGLQJ VFKHPH DUH GHWHFWHG DQG LQGLFDWHG DW WKH %39
RXWSXW SLQ
DECODER DISABLE
)RU WHVWLQJ SXUSRVHV DQG LQ DSSOLFDWLRQV ZKHUH WKH
GHFRGHU QHHGV WR EH E\SDVVHG WKH GHFRGHU FDQ EH
GLVDEOHG E\ VHWWLQJ '(&2',6 KLJK ,Q WKLV PRGH DOO
ELSRODU YLRODWLRQ SXOVHV DUH LQGLFDWHG DW WKH %39 SLQ
BIPOLAR VIOLATION
7KH %39 SLQ ZLOO JR KLJK IRU RQH ELW SHULRG ZKHQ D ELSRODU
YLRODWLRQ QRW FRUUHVSRQGLQJ WR WKH DSSURSULDWH FRGLQJ UXOH
RU D FRGH HUURU LV GHWHFWHG RQ WKH 53'$7$51'$7$ 7KH
YLRODWLRQ SXOVH LV DOZD\V UHPRYHG IURP WKH GHFRGHU
RXWSXW 5326 51(* ZKHQ '(&2',6 LV VHW ORZ
相關(guān)PDF資料
PDF描述
VE-BNT-MX-B1 CONVERTER MOD DC/DC 6.5V 75W
VE-BNP-MX-B1 CONVERTER MOD DC/DC 13.8V 75W
LTC1334CNW IC CMOS TXRX MULTIPROTOCOL 28DIP
VE-BNN-MX-B1 CONVERTER MOD DC/DC 18.5V 75W
MS3111F18-32P CONN RCPT 32POS CBL MNT W/PINS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT7298P 制造商:EXAR 制造商全稱:EXAR 功能描述:DS3/STS-1, E3 INTEGRATED LINE TRANSMITTER
XRT7298W 制造商:EXAR 制造商全稱:EXAR 功能描述:DS3/STS-1, E3 INTEGRATED LINE TRANSMITTER
XRT72L13 制造商:EXAR 制造商全稱:EXAR 功能描述:M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC
XRT72L13IQ 制造商:EXAR 制造商全稱:EXAR 功能描述:M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC
XRT72L50 制造商:EXAR 制造商全稱:EXAR 功能描述:SINGLE CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER