LXT304A [LevelOne]
Low-Power T1/E1 Short-Haul Transceiver with Receive JA; 低功耗T1 / E1短程收发器与接收JA
| 型号： | LXT304A |
| 厂家： | 
LEVEL ONE |
| 描述： | Low-Power T1/E1 Short-Haul Transceiver with Receive JA |
| 文件： | 总18页 (文件大小：346K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
$35,/ ìääç
'$7$ 6+((7
5HYLVLRQ íïí
/;7êíé$
/RZð3RZHU 7ìî(ì 6KRUWð+DXO 7UDQVFHLYHU ZLWK 5HFHLYH -$
ì
*HQHUDO 'HVFULSWLRQ
)HDWXUHV
The LXT304A is a fully integrated low-power transceiver
for both North American 1.544 Mbps (T1), and Interna-
tional 2.048 Mbps (E1) applications. It features a constant
low output impedance transmitter allowing for high trans-
mitter return loss in T1/E1 applications. Transmit pulse
shapes (DSX-1 or E1) are selectable for various line
lengths and cable types.
‡ /RZ SRZHU FRQVXPSWLRQ õéíí P: PD[LPXPô
éíø OHVV WKDQ WKH /;7êíí
‡ &RQVWDQW ORZ RXWSXW LPSHGDQFH WUDQVPLWWHU UHJDUGOHVV
RI GDWD SDWWHUQ õê Ω W\SLFDOô
‡ +LJK WUDQVPLW DQG UHFHLYH UHWXUQ ORVV H[FHHGV (76,
(76 êííìçç DQG *ïæíê UHFRPPHQGDWLRQV
‡ 0HHWV RU H[FHHGV DOO LQGXVWU\ VSHFLILFDWLRQV LQFOXGLQJ
,78 *ïæíêñ $16, 7ìïéíê DQG $7÷7 3XE çëéìì
The LXT304A provides receive jitter attenuation starting
at 3 Hz, and is microprocessor controllable through a serial
interface.
‡ &RPSDWLEOH ZLWK PRVW SRSXODU 3&0 IUDPHUV
‡ /LQH GULYHUñ GDWD UHFRYHU\ DQG FORFN UHFRYHU\ IXQFWLRQV
‡ 0LQLPXP UHFHLYH VLJQDO RI èíí P9
It offers a variety of diagnostic features including transmit
and receive monitoring. The device incorporates an on-
chip crystal oscillator, and also accepts digital clock inputs.
It uses an advanced double-poly, double-metal CMOS pro-
cess and requires only a single 5-volt power supply.
‡ 6HOHFWDEOH VOLFHU OHYHOV õ(ìî'6;ðìô LPSURYH 615
‡ 3URJUDPPDEOH WUDQVPLW HTXDOL]HU VKDSHV SXOVHV WR PHHW
'6;ðì SXOVH WHPSODWH IURP í WR çèè IW
$SSOLFDWLRQV
‡ /RFDO DQG UHPRWH ORRSEDFN IXQFWLRQV
‡ 7UDQVPLWî5HFHLYH SHUIRUPDQFH PRQLWRUV ZLWK '30
DQG /26 RXWSXWV
‡ 3&0î9RLFH &KDQQHO %DQNV
‡ 'DWD &KDQQHO %DQNî&RQFHQWUDWRU
‡ 5HFHLYHU MLWWHU WROHUDQFH íïé 8, IURP éí N+] WR ìíí N+]
‡ 7ìî(ì PXOWLSOH[HU
‡ 5HFHLYH MLWWHU DWWHQXDWLRQ VWDUWLQJ DW ê +] PHHWV 7%5ìëî
ìê VSHFLILFDWLRQ
‡ 'LJLWDO $FFHVV DQG &URVVðFRQQHFW 6\VWHPV õ'$&6ô
‡ &RPSXWHU WR 3%; LQWHUIDFH õ&3, ÷ '0,ô
‡ +LJKðVSHHG GDWD WUDQVPLVVLRQ OLQHV
‡ ,QWHUIDFLQJ &XVWRPHU 3UHPLVHV (TXLSPHQW WR D &68
‡ 'LJLWDO /RRS &DUULHU õ'/&ô WHUPLQDOV
‡ 6HULDO FRQWURO LQWHUIDFH
‡ $QDORJîGLJLWDO /26 PRQLWRU SHU *ïææè
‡ $YDLODEOH LQ ëåðSLQ ',3 RU 3/&&
ìì
ìé
ìè
/;7êíé$ %ORFN 'LDJUDP
MODE
Control
Line Driver
Host Hardware
TPOS
TNEG
TTIP
TRING
Equalizer
EC1
EC2
INT
SDI
Synchronizer
TCLK
Data Slicers
EC3
SDO
CS
SCLK
CLKE
RLOOP
LLOOP
TAOS
Internal Clock
Generator
Timing
MCLK
RTIP
Recovery
Peak
Detector
XTALIN
XTALOUT
RCLK
RRING
Jitter
Attenuator
RPOS
RNEG
Data Latch
Elastic Store
Transmit
MTIP
Driver
Control
Receive
Monitor
LOS
MRING
DPM
L1
ëðëì
/;7êíé$ /RZð3RZHU 7ìî(ì 6KRUWð+DXO 7UDQVFHLYHU
3,1 $66,*10(176 ÷ 6,*1$/ '(6&5,37,216
)LJXUH ìã 3LQ $VVLJQPHQWV
ì
ë
ê
é
è
ç
æ
å
ëå
ëæ
ëç
ëè
ëé
ëê
ëë
ëì
ëí
ìä
ìå
ìæ
ìç
ìè
0&/.
7&/.
&/.(î7$26
6&/.î//223
CSî5/223
6'2î(&ê
6',î(&ë
INTî(&ì
5*1'
59ò
55,1*
57,3
05,1*
07,3
7326
71(*
02'(
51(*
5326
5&/.
02'(
51(*
5326
è
ç
æ
å
ä
ìí
ìì
6'2î(&ê
6',î(&ë
INTî(&ì
5*1'
59ò
ëè
ëé
ëê
ëë
ëì
ëí
ìä
/;7êíé$3(
5&/.
ä
;7$/,1
;7$/287
'30
;7$/,1
;7$/287
'30
ìí
ìì
ìë
ìê
ìé
55,1*
57,3
/26
77,3
7*1'
75,1*
79ò
7DEOH ìã 3LQ 'HVFULSWLRQV
3LQ ú
6\P
,î2ì
'HVFULSWLRQ
0DVWHU &ORFNï $ ìïèéé RU ëïíéå 0+] FORFN LQSXW XVHG WR JHQHUDWH LQWHUQDO FORFNVï
8SRQ /RVV RI 6LJQDO õ/26ôñ 5&/. LV GHULYHG IURP 0&/.ï ,I 0&/. LV QRW DSSOLHGñ
WKLV SLQ VKRXOG EH JURXQGHGï
ì
0&/.
',
7UDQVPLW &ORFNï 7UDQVPLW FORFN LQSXWï 7326 DQG 71(* DUH VDPSOHG RQ WKH IDOOLQJ
HGJH RI 7&/.ï ,I 7&/. LV QRW VXSSOLHGñ WKH WUDQVPLWWHU UHPDLQV SRZHUHG GRZQï
ë
ê
é
è
7&/.
7326
',
',
',
',
7UDQVPLW 3RVLWLYH 'DWDï ,QSXW IRU SRVLWLYH SXOVH WR EH WUDQVPLWWHG RQ WKH WZLVWHGðSDLU
OLQHï
7UDQVPLW 1HJDWLYH 'DWDï ,QSXW IRU QHJDWLYH SXOVH WR EH WUDQVPLWWHG RQ WKH WZLVWHGðSDLU
OLQHï
71(*
02'(
0RGH 6HOHFWï 6HWWLQJ 02'( WR ORJLF ì SXWV WKH /;7êíé$ LQ WKH +RVW 0RGHï ,Q WKH
+RVW 0RGHñ WKH VHULDO LQWHUIDFH LV XVHG WR FRQWURO WKH /;7êíé$ DQG GHWHUPLQH LWV VWDWXVï
6HWWLQJ 02'( WR ORJLF í SXWV WKH /;7êíé$ LQ WKH +DUGZDUH õ+î:ô 0RGHï ,Q WKH
+DUGZDUH 0RGHñ WKH VHULDO LQWHUIDFH LV GLVDEOHG DQG KDUGðZLUHG SLQV DUH XVHG WR FRQWURO
FRQILJXUDWLRQ DQG UHSRUW VWDWXVï
5HFHLYH 1HJDWLYH 'DWDâ 5HFHLYH 3RVLWLYH 'DWDï 5HFHLYHG GDWD RXWSXWVï $ VLJQDO RQ
51(* FRUUHVSRQGV WR UHFHLSW RI D QHJDWLYH SXOVH RQ 57,3 DQG 55,1*ï $ VLJQDO RQ
5326 FRUUHVSRQGV WR UHFHLSW RI D SRVLWLYH SXOVH RQ 57,3 DQG 55,1*ï 51(* DQG
5326 RXWSXWV DUH 1RQð5HWXUQðWRð=HUR õ15=ôï %RWK RXWSXWV DUH VWDEOH DQG YDOLG RQ WKH
ULVLQJ HGJH RI 5&/.ï ,Q WKH +RVW 0RGHñ &/.( GHWHUPLQHV WKH FORFN HGJH DW ZKLFK
WKHVH RXWSXWV DUH VWDEOH DQG YDOLGï ,Q WKH +DUGZDUH 0RGH ERWK RXWSXWV DUH VWDEOH DQG
YDOLG RQ WKH ULVLQJ HGJH RI 5&/.ï
ç
æ
51(*
5326
'2
'2
ìï (QWULHV LQ ,î2 FROXPQ DUHã ', 'LJLWDO ,QSXWâ '2 'LJLWDO 2XWSXWâ $, $QDORJ ,QSXWâ $2 $QDORJ 2XWSXWâ 6 6XSSO\ï
ëðëë
L1
3LQ $VVLJQPHQWV ÷ 6LJQDO 'HVFULSWLRQV
7DEOH ìã 3LQ 'HVFULSWLRQV ¤ FRQWLQXHG
3LQ ú
6\P
,î2ì
'HVFULSWLRQ
5HFRYHUHG &ORFNï 7KLV LV WKH FORFN UHFRYHUHG IURP WKH VLJQDO UHFHLYHG DW 57,3 DQG
55,1*ï
å
5&/.
'2
&U\VWDO ,QSXWâ &U\VWDO 2XWSXWï $Q H[WHUQDO FU\VWDO RSHUDWLQJ DW IRXU WLPHV WKH ELW UDWH
õçïìæç 0+] IRU '6;ðìñ åïìäë 0+] IRU (ì DSSOLFDWLRQV ZLWK DQ ìåïæ S) ORDGô LV
UHTXLUHG WR HQDEOH WKH MLWWHU DWWHQXDWLRQ IXQFWLRQ RI WKH /;7êíé$ï 7KHVH SLQV PD\ DOVR
EH XVHG WR GLVDEOH WKH MLWWHU DWWHQXDWRU E\ FRQQHFWLQJ WKH ;7$/,1 SLQ WR WKH SRVLWLYH
VXSSO\ WKURXJK D UHVLVWRUñ DQG W\LQJ WKH ;7$/287 SLQ WR JURXQGï
ä
;7$/,1
$,
ìí
;7$/287
$2
'ULYHU 3HUIRUPDQFH 0RQLWRUï '30 JRHV WR D ORJLF ì ZKHQ WKH WUDQVPLW PRQLWRU ORRS
õ07,3 DQG 05,1*ô GRHV QRW GHWHFW D VLJQDO IRU çê ‘ë FORFN SHULRGVï '30 UHPDLQV DW
ORJLF ì XQWLO D VLJQDO LV GHWHFWHGï
ìì
ìë
'30
/26
'2
'2
/RVV RI 6LJQDOï /26 JRHV WR D ORJLF ì ZKHQ ìæè FRQVHFXWLYH VSDFHV KDYH EHHQ GHWHFWHGï
/26 UHWXUQV WR D ORJLF í ZKHQ WKH UHFHLYHG VLJQDO UHDFKHV ìëïèø RQHV GHQVLW\ñ EDVHG RQ
é RQHV LQ DQ\ êëðELW SHULRG ZLWK QR PRUH WKDQ ìè FRQVHFXWLYH ]HURVï
7UDQVPLW 7LSâ 7UDQVPLW 5LQJï 'LIIHUHQWLDO 'ULYHU 2XWSXWVï 7KHVH ORZ LPSHGDQFH RXWð
SXWV DFKLHYH PD[LPXP SRZHU VDYLQJV WKURXJK D ìãìïìè WUDQVIRUPHU õ7ìôñ RU D ìãì õæè
Ωô RU ìãìïëç õìëí Ωô WUDQVIRUPHU õ(ìô ZLWKRXW DGGLWLRQDO FRPSRQHQWVï 7R SURYLGH
KLJKHU UHWXUQ ORVVñ UHVLVWRUV PD\ EH XVHG LQ VHULHV ZLWK D WUDQVIRUPHU DV VSHFLILHG LQ
$SSOLFDWLRQ ,QIRUPDWLRQï
ìê
ìç
77,3
$2
$2
75,1*
7UDQVPLW *URXQGï *URXQG UHWXUQ IRU WKH WUDQVPLW GULYHUV SRZHU VXSSO\ 79òï
ìé
ìè
7*1'
79ò
6
6
7UDQVPLW 3RZHU 6XSSO\ï òè 9'& SRZHU VXSSO\ LQSXW IRU WKH WUDQVPLW GULYHUVï 79ò
PXVW QRW YDU\ IURP 59ò E\ PRUH WKDQ ‘íïê 9ï
ìæ
ìå
07,3
$,
$,
0RQLWRU 7LSâ 0RQLWRU 5LQJï 7KHVH SLQV DUH XVHG WR PRQLWRU WKH WLS DQG ULQJ WUDQVPLW
RXWSXWVï 7KH WUDQVFHLYHU FDQ EH FRQQHFWHG WR PRQLWRU LWV RZQ RXWSXW RU WKH RXWSXW RI
DQRWKHU /;7êíé$ RQ WKH ERDUGï 7R SUHYHQW IDOVH LQWHUUXSWV LQ WKH +RVW 0RGH LI WKH
PRQLWRU LV QRW XVHGñ DSSO\ D FORFN VLJQDO WR RQH RI WKH PRQLWRU SLQV DQG WLH
WKH RWKHU PRQLWRU SLQ WR DSSUR[LPDWHO\ WKH FORFN©V PLGðOHYHO YROWDJHï 7KH
PRQLWRU FORFN FDQ UDQJH IURP ìíí N+] WR WKH 7&/. IUHTXHQF\ï
05,1*
5HFHLYH 7LSâ 5HFHLYH 5LQJï 7KH $0, VLJQDO UHFHLYHG IURP WKH OLQH LV DSSOLHG DW WKHVH
SLQVï $ FHQWHUðWDSSHGñ FHQWHUðJURXQGHGñ ëãì VWHSðXS WUDQVIRUPHU LV UHTXLUHG RQ WKHVH
SLQVï 'DWD DQG FORFN IURP WKH VLJQDO DSSOLHG DW WKHVH SLQV DUH UHFRYHUHG DQG RXWSXW RQ
WKH 5326î51(* DQG 5&/. SLQVï
ìä
ëí
57,3
$,
$,
55,1*
5HFHLYH 3RZHU 6XSSO\ï òè 9'& SRZHU VXSSO\ IRU DOO FLUFXLWV H[FHSW WKH WUDQVPLW GULYð
HUVï õ7UDQVPLW GULYHUV DUH VXSSOLHG E\ 79òïô
ëì
ëë
59ò
6
6
5HFHLYH *URXQGï *URXQG UHWXUQ IRU SRZHU VXSSO\ 59òï
5*1'
ìï (QWULHV LQ ,î2 FROXPQ DUHã ', 'LJLWDO ,QSXWâ '2 'LJLWDO 2XWSXWâ $, $QDORJ ,QSXWâ $2 $QDORJ 2XWSXWâ 6 6XSSO\ï
ëðëê
L1
/;7êíé$ /RZð3RZHU 7ìî(ì 6KRUWð+DXO 7UDQVFHLYHU
7DEOH ìã 3LQ 'HVFULSWLRQV ¤ FRQWLQXHG
3LQ ú
6\P
,î2ì
'HVFULSWLRQ
,QWHUUXSW õ+RVW 0RGHôï 7KLV /;7êíé$ +RVW 0RGH RXWSXW JRHV /RZ WR IODJ WKH KRVW
SURFHVVRU ZKHQ /26 RU '30 JR DFWLYHï INT LV DQ RSHQðGUDLQ RXWSXW DQG VKRXOG EH WLHG
WR SRZHU VXSSO\ 59ò WKURXJK D UHVLVWRUï INT LV UHVHW E\ FOHDULQJ WKH UHVSHFWLYH UHJLVWHU
ELW õ/26 DQGîRU '30ïô
ëê
INT
'2
(TXDOL]HU &RQWURO ì õ+î: 0RGHôï 7KH VLJQDO DSSOLHG DW WKLV SLQ LQ WKH /;7êíé$
+DUGZDUH 0RGH LV XVHG LQ FRQMXQFWLRQ ZLWK (&ë DQG (&ê LQSXWV WR GHWHUPLQH VKDSH
DQG DPSOLWXGH RI $0, RXWSXW WUDQVPLW SXOVHVï
(&ì
',
6HULDO 'DWD ,Q õ+RVW 0RGHôï 7KH VHULDO GDWD LQSXW VWUHDP LV DSSOLHG WR WKLV SLQ ZKHQ WKH
/;7êíé$ RSHUDWHV LQ WKH +RVW 0RGHï 6', LV VDPSOHG RQ WKH ULVLQJ HGJH RI 6&/.ï
ëé
ëè
6',
',
',
(TXDOL]HU &RQWURO ë õ+î: 0RGHôï 7KH VLJQDO DSSOLHG DW WKLV SLQ LQ WKH /;7êíé$
+DUGZDUH 0RGH LV XVHG LQ FRQMXQFWLRQ ZLWK (&ì DQG (&ê LQSXWV WR GHWHUPLQH VKDSH
DQG DPSOLWXGH RI $0, RXWSXW WUDQVPLW SXOVHVï
(&ë
6HULDO 'DWD 2XW õ+RVW 0RGHôï 7KH VHULDO GDWD IURP WKH RQðFKLS UHJLVWHU LV RXWSXW RQ
WKLV SLQ LQ WKH /;7êíé$ +RVW 0RGHï ,I &/.( LV +LJKñ 6'2 LV YDOLG RQ WKH ULVLQJ HGJH
RI 6&/.ï ,I &/.( LV /RZñ 6'2 LV YDOLG RQ WKH IDOOLQJ HGJH RI 6&/.ï 7KLV SLQ JRHV WR
D KLJKðLPSHGDQFH VWDWH ZKHQ WKH VHULDO SRUW LV EHLQJ ZULWWHQ WR DQG ZKHQ CS LV +LJKï
6'2
'2
(TXDOL]HU &RQWURO ê õ+î: 0RGHôï 7KH VLJQDO DSSOLHG DW WKLV SLQ LQ WKH /;7êíé$
+DUGZDUH 0RGH LV XVHG LQ FRQMXQFWLRQ ZLWK (&ì DQG (&ë LQSXWV WR GHWHUPLQH VKDSH
DQG DPSOLWXGH RI $0, RXWSXW WUDQVPLW SXOVHVï
(&ê
CS
',
',
',
&KLS 6HOHFW õ+RVW 0RGHôï 7KLV LQSXW LV XVHG WR DFFHVV WKH VHULDO LQWHUIDFH LQ WKH
/;7êíé$ +RVW 0RGHï )RU HDFK UHDG RU ZULWH RSHUDWLRQñ CS PXVW WUDQVLWLRQ IURP +LJK
WR /RZñ DQG UHPDLQ /RZï
ëç
5HPRWH /RRSEDFN õ+î: 0RGHôï 7KLV LQSXW FRQWUROV ORRSEDFN IXQFWLRQV LQ WKH
/;7êíé$ +DUGZDUH 0RGHï 6HWWLQJ 5/223 +LJK HQDEOHV WKH 5HPRWH /RRSEDFN
0RGHï 6HWWLQJ ERWK 5/223 DQG //223 FDXVHV D 5HVHWï
5/223
6HULDO &ORFN õ+RVW 0RGHôï 7KLV FORFN LV XVHG LQ WKH /;7êíé$ +RVW 0RGH WR ZULWH GDWD
WR RU UHDG GDWD IURP WKH VHULDO LQWHUIDFH UHJLVWHUVï
ëæ
ëå
6&/.
//223
&/.(
',
',
',
/RFDO /RRSEDFN õ+î: 0RGHôï 7KLV LQSXW FRQWUROV ORRSEDFN IXQFWLRQV LQ WKH /;7êíé$
+DUGZDUH 0RGHï 6HWWLQJ //223 +LJK HQDEOHV WKH /RFDO /RRSEDFN 0RGHï
&ORFN (GJH õ+RVW 0RGHôï 6HWWLQJ &/.( +LJK FDXVHV 5326 DQG 51(* WR EH YDOLG RQ
WKH IDOOLQJ HGJH RI 5&/.ñ DQG 6'2 WR EH YDOLG RQ WKH ULVLQJ HGJH RI 6&/.ï :KHQ
&/.( LV /RZñ 5326 DQG 51(* DUH YDOLG RQ WKH ULVLQJ HGJH RI 5&/.ñ DQG 6'2 LV
YDOLG RQ WKH IDOOLQJ HGJH RI 6&/.ï
7UDQVPLW $OO 2QHV õ+î: 0RGHôï :KHQ VHW +LJKñ 7$26 FDXVHV WKH /;7êíé$ õ+DUGð
ZDUH 0RGHô WR WUDQVPLW D FRQWLQXRXV VWUHDP RI PDUNV DW WKH 7&/. IUHTXHQF\ï $FWLYDWð
LQJ 7$26 FDXVHV 7326 DQG 71(* LQSXWV WR EH LJQRUHGï 7$26 LV LQKLELWHG GXULQJ
5HPRWH /RRSEDFNï
7$26
',
ìï (QWULHV LQ ,î2 FROXPQ DUHã ', 'LJLWDO ,QSXWâ '2 'LJLWDO 2XWSXWâ $, $QDORJ ,QSXWâ $2 $QDORJ 2XWSXWâ 6 6XSSO\ï
ëðëé
L1
)XQFWLRQDO 'HVFULSWLRQ
DUH UHFHLYHG DW 55,1*ï 5HFRYHUHG GDWD LV RXWSXW DW 5326
DQG 51(*ñ DQG WKH UHFRYHUHG FORFN LV RXWSXW DW 5&/.ï
5HIHU WR 7HVW 6SHFLILFDWLRQV IRU /;7êíé$ UHFHLYHU WLPLQJï
)81&7,21$/ '(6&5,37,21
7KH VLJQDO UHFHLYHG DW 5326 DQG 51(* LV SURFHVVHG
WKURXJK WKH SHDN GHWHFWRU DQG GDWD VOLFHUVï 7KH SHDN GHWHFð
WRU VDPSOHV WKH LQSXWV DQG GHWHUPLQHV WKH PD[LPXP YDOXH
RI WKH UHFHLYHG VLJQDOï $ SHUFHQWDJH RI WKH SHDN YDOXH LV
SURYLGHG WR WKH GDWD VOLFHUV DV D WKUHVKROG OHYHO WR HQVXUH
RSWLPXP VLJQDOðWRðQRLVH UDWLRï )RU '6;ðì DSSOLFDWLRQV
õGHWHUPLQHG E\ (TXDOL]HU &RQWURO LQSXWV (&ì ð (&ê ≠ íííô
WKH WKUHVKROG LV VHW WR æíø RI WKH SHDN YDOXHï 7KLV WKUHVKð
ROG LV PDLQWDLQHG DERYH çèø IRU XS WR ìè VXFFHVVLYH ]HURV
RYHU WKH UDQJH RI VSHFLILHG RSHUDWLQJ FRQGLWLRQVï )RU (ì
DSSOLFDWLRQV õ(& LQSXWV ííí RU ííìô WKH WKUHVKROG LV èíøï
7KH /;7êíé$ LV D IXOO\ LQWHJUDWHG 3&0 WUDQVFHLYHU IRU
ERWK ìïèéé 0ESV õ'6;ðìô DQG ëïíéå 0ESV õ(ìô DSSOLFDð
WLRQVï ,W DOORZV IXOOðGXSOH[ WUDQVPLVVLRQ RI GLJLWDO GDWD
RYHU H[LVWLQJ WZLVWHGðSDLU LQVWDOODWLRQVï
7KH /;7êíé$ WUDQVFHLYHU LQWHUIDFHV ZLWK WZR WZLVWHGðSDLU
OLQHVñ RQH WZLVWHGðSDLU IRU WUDQVPLWñ RQH WZLVWHGðSDLU IRU
UHFHLYHï
3RZHU 5HTXLUHPHQWV
7KH /;7êíé$ LV D ORZðSRZHU &026 GHYLFHï ,W RSHUDWHV
IURP D VLQJOH òè 9 SRZHU VXSSO\ ZKLFK FDQ EH FRQQHFWHG
H[WHUQDOO\ WR ERWK WKH WUDQVPLWWHU DQG UHFHLYHUï +RZHYHUñ
WKH WZR LQSXWV PXVW EH ZLWKLQ ‘ ïê 9 RI HDFK RWKHUñ DQG
GHFRXSOHG WR WKHLU UHVSHFWLYH JURXQGV VHSDUDWHO\ï 5HIHU WR
$SSOLFDWLRQ ,QIRUPDWLRQ IRU W\SLFDO GHFRXSOLQJ FLUFXLWU\ï
,VRODWLRQ EHWZHHQ WKH WUDQVPLW DQG UHFHLYH FLUFXLWV LV SURð
YLGHG LQWHUQDOO\ï 'XULQJ QRUPDO RSHUDWLRQñ 7$26 RU
//223ñ WKH WUDQVPLWWHU SRZHUV GRZQ LI 7&/. LV QRW VXSð
SOLHGï
7KH UHFHLYHU LV FDSDEOH RI DFFXUDWHO\ UHFRYHULQJ VLJQDOV
ZLWK XS WR ðìêïç G% RI DWWHQXDWLRQ õIURP ëïé 9ôñ FRUUHð
VSRQGLQJ WR D UHFHLYHG VLJQDO OHYHO RI DSSUR[LPDWHO\ èíí
P9ï 0D[LPXP OLQH OHQJWK LV ìèíí IHHW RI $%$0 FDEOH
õDSSUR[LPDWHO\ ç G% RI DWWHQXDWLRQôï 5HJDUGOHVV RI
UHFHLYHG VLJQDO OHYHOñ WKH SHDN GHWHFWRUV DUH KHOG DERYH D
PLQLPXP OHYHO RI ïê 9 WR SURYLGH LPPXQLW\ IURP LPSXOð
VLYH QRLVHï
$IWHU SURFHVVLQJ WKURXJK WKH GDWD VOLFHUVñ WKH UHFHLYHG VLJð
QDO LV URXWHG WR WKH GDWD DQG FORFN UHFRYHU\ VHFWLRQVñ DQG WR
WKH UHFHLYH PRQLWRUï 7KH GDWD DQG FORFN UHFRYHU\ FLUFXLWV
DUH KLJKO\ WROHUDQW ZLWK DQ LQSXW MLWWHU WROHUDQFH VLJQLILð
FDQWO\ EHWWHU WKDQ UHTXLUHG E\ 3XE çëéììï 5HIHU WR 7HVW
6SHFLILFDWLRQV IRU DGGLWLRQDO LQIRUPDWLRQï
5HVHW 2SHUDWLRQ
8SRQ SRZHU XSñ WKH WUDQVFHLYHU LV KHOG VWDWLF XQWLO WKH
SRZHU VXSSO\ UHDFKHV DSSUR[LPDWHO\ ê 9ï 8SRQ FURVVLQJ
WKLV WKUHVKROGñ WKH GHYLFH EHJLQV D êë PV UHVHW F\FOH WR FDOð
LEUDWH WKH WUDQVPLW DQG UHFHLYH GHOD\ OLQHV DQG ORFN WKH
3KDVH /RFN /RRS WR WKH UHFHLYH OLQHï $ UHIHUHQFH FORFN LV
UHTXLUHG WR FDOLEUDWH WKH GHOD\ OLQHVï 7KH WUDQVPLWWHU UHIHUð
HQFH LV SURYLGHG E\ 7&/.ï 0&/. SURYLGHV WKH UHFHLYHU
UHIHUHQFHï ,I WKH FU\VWDO RVFLOODWRU LV JURXQGHGñ 0&/. LV
XVHG DV WKH UHFHLYHU UHIHUHQFH FORFNï
7KH UHFHLYHU PRQLWRU ORDGV D GLJLWDO FRXQWHU DW WKH 5&/.
IUHTXHQF\ï 7KH FRXQW LV LQFUHPHQWHG HDFK WLPH D ]HUR LV
UHFHLYHGñ DQG UHVHW WR ]HUR HDFK WLPH D RQH õPDUNô LV
UHFHLYHGï 8SRQ UHFHLSW RI ìæè FRQVHFXWLYH ]HURV WKH /26
SLQ JRHV KLJKñ DQG D VPRRWK WUDQVLWLRQ UHSODFHV WKH 5&/.
RXWSXW ZLWK WKH 0&/.ï õ,I 0&/. LV QRW VXSSOLHG WKH
5&/. RXWSXW ZLOO EH UHSODFHG ZLWK WKH FHQWHUHG FU\VWDO
FORFNïô 7KH /26 SLQ LV UHVHW ZKHQ WKH UHFHLYHG VLJQDO
UHDFKHV ìëïèø RQHV GHQVLW\ õé PDUNV LQ êë ELWVô ZLWK QR
PRUH WKDQ ìè FRQVHFXWLYH ]HURVï
7KH WUDQVFHLYHU FDQ DOVR EH UHVHW IURP WKH +RVW RU +DUGð
ZDUH 0RGHï ,Q +RVW 0RGHñ UHVHW LV FRPPDQGHG E\ VLPXOð
WDQHRXVO\ ZULWLQJ 5/223 DQG //223 WR WKH UHJLVWHUï ,Q
+DUGZDUH 0RGHñ UHVHW LV FRPPDQGHG E\ KROGLQJ 5/223
DQG //223 +LJK VLPXOWDQHRXVO\ IRU ëíí QVï 5HVHW LV LQLð
WLDWHG RQ WKH IDOOLQJ HGJH RI WKH UHVHW UHTXHVWï ,Q HLWKHU
PRGHñ UHVHW FOHDUV DQG VHWV DOO UHJLVWHUV WR í DQG WKHQ EHJLQV
FDOLEUDWLRQï
5HFRYHUHG FORFN VLJQDOV DUH VXSSOLHG WR WKH -LWWHU $WWHQXDð
WRU DQG WKH GDWD ODWFKï 7KH UHFRYHUHG GDWD LV SDVVHG WR WKH
(ODVWLF 6WRUH ZKHUH LW LV EXIIHUHG DQG V\QFKURQL]HG ZLWK WKH
GHMLWWHUHG UHFRYHUHG FORFN õ5&/.ôï
-LWWHU $WWHQXDWLRQ
5HFHLYHU
7KH /;7êíé$ UHFHLYHV WKH VLJQDO LQSXW IURP RQH WZLVWHGð
SDLU OLQH RQ HDFK VLGH RI D FHQWHUðJURXQGHG WUDQVIRUPHUï
3RVLWLYH SXOVHV DUH UHFHLYHG DW 57,3 DQG QHJDWLYH SXOVHV
Jitter attenuation of the LXT304A clock and data outputs is
provided by a Jitter Attenuation Loop (JAL) and an Elastic
Store (ES). An external crystal oscillating at 4 times the bit
rate provides clock stabilization. Refer to Application
Information for crystal specifications. The ES is a 32 x 2-
ëðëè
L1
/;7êíé$ /RZð3RZHU 7ìî(ì 6KRUWð+DXO 7UDQVFHLYHU
bit register. Recovered data is clocked into the ES with the
recovered clock signal, and clocked out of the ES with the
dejittered clock from the JAL. When the bit count in the ES
is within two bits of overflowing or underflowing, the ES
adjusts the output clock by 1/8 of a bit period. The ES pro-
duces an average delay of 16 bits in the receive path.
(&6$ VSHFLILFDWLRQV IRU &68 DSSOLFDWLRQVï $ ìãìïìè WUDQVð
PLW WUDQVIRUPHU LV XVHG IRU ìïèéé 0ESV V\VWHPVï )RU
KLJKHU UHWXUQ ORVV LQ '6;ðì DSSOLFDWLRQVñ XVH äïì Ω UHVLVð
WRUV LQ VHULHV ZLWK D ìãëïê WUDQVPLW WUDQVIRUPHUï
ëïíéå 0ESV SXOVHV FDQ GULYH FRD[LDO RU VKLHOGHG WZLVWHGð
SDLU OLQHVï )RU (ì V\VWHPVñ D ìãë WUDQVPLW WUDQVIRUPHU DQG
VHULHV UHVLVWRUV DUH UHFRPPHQGHGï 7KLV GHVLJQ PHHWV RU
H[FHHGV DOO ,78 DQG (76, VSHFLILFDWLRQV IRU WUDQVPLW DQG
UHFHLYH UHWXUQ ORVVï $ ìãì RU ìãìïëç WUDQVIRUPHU PD\ EH
XVHG ZLWKRXW VHULHV UHVLVWRUVï
7UDQVPLWWHU
'DWD UHFHLYHG IRU WUDQVPLVVLRQ RQWR WKH OLQH LV FORFNHG VHULð
DOO\ LQWR WKH GHYLFH DW 7326 DQG 71(*ï ,QSXW V\QFKURQLð
]DWLRQ LV VXSSOLHG E\ WKH WUDQVPLW FORFN õ7&/.ôï ,I 7&/.
LV QRW VXSSOLHG WKH WUDQVPLWWHU UHPDLQV SRZHUHG GRZQñ
H[FHSW GXULQJ UHPRWH ORRSEDFNï 5HIHU WR 7HVW 6SHFLILFDð
WLRQV IRU PDVWHU DQG WUDQVPLW FORFN WLPLQJ FKDUDFWHULVWLFVï
'ULYHU 3HUIRUPDQFH 0RQLWRU
The transceiver incorporates a Driver Performance Moni-
tor (DPM) in parallel with TTIP and TRING at the output
transformer. The DPM output goes High upon detection of
63 consecutive zeros. It is reset when a one is detected on
the transmit line, or when a reset command is received.
7KH WUDQVPLWWHG SXOVH VKDSH LV GHWHUPLQHG E\ (TXDOL]HU
&RQWURO VLJQDOV (&ì WKURXJK (&ê DV VKRZQ LQ 7DEOH ëï
(TXDOL]HU &RQWURO VLJQDOV PD\ EH KDUGZLUHG LQ WKH +DUGð
ZDUH PRGHñ RU LQSXW DV SDUW RI WKH VHULDO GDWD VWUHDP õ6',ô
LQ WKH +RVW PRGHï 6KDSHG SXOVHV DUH DSSOLHG WR WKH $0,
OLQH GULYHU IRU WUDQVPLVVLRQ RQWR WKH OLQH DW 77,3 DQG
75,1*ï 7KH OLQH GULYHU SURYLGHV D FRQVWDQW ORZ RXWSXW
LPSHGDQFH RI ê Ω õW\SLFDOôï 7KLV ZHOO FRQWUROOHG RXWSXW
LPSHGDQFH SURYLGHV H[FHOOHQW UHWXUQ ORVV õ! ìå G%ô ZKHQ
XVHG ZLWK H[WHUQDO äïì Ω SUHFLVLRQ UHVLVWRUV õ‘ ìø DFFXð
UDF\ô LQ VHULHV ZLWK D WUDQVPLW WUDQVIRUPHU ZLWK D WXUQV UDWLR
RI ìãëïê õ‘ ëø DFFXUDF\ôï 6HULHV UHVLVWRUV DOVR SURYLGH
LQFUHDVHG VXUJH SURWHFWLRQ DQG UHGXFH VKRUW FLUFXLW FXUUHQW
IORZï
/LQH &RGH
The LXT304A transmits data as a 50% AMI line code as
shown in Figure 2. The output driver maintains a constant
low output impedance regardless of whether it is driving
marks or spaces.
2SHUDWLQJ 0RGHV
The LXT304A can be controlled through hard-wired pins
(Hardware Mode) or by a microprocessor through a serial
interface (Host Mode). The mode of operation is set by the
MODE pin logic level. The LXT304A can also be com-
manded to operate in one of several diagnostic modes.
3XOVHV FDQ EH VKDSHG IRU HLWKHU ìïèéé RU ëïíéå 0ESV DSSOLð
FDWLRQVï ìïèéé 0ESV SXOVHV IRU '6;ðì DSSOLFDWLRQV FDQ EH
SURJUDPPHG WR PDWFK OLQH OHQJWKV IURP í WR çèè IHHW RI
$%$0 FDEOHï 7KH /;7êíé$ DOVR PDWFKHV )&& DQG
7DEOH ëã (TXDOL]HU &RQWURO ,QSXWV
(&ê
(&ë
(&ì
/LQH /HQJWKì
&DEOH /RVVë
$SSOLFDWLRQ
%LW 5DWH
í
ì
ì
ì
ì
ì
í
í
ì
ì
ì
í
ì
í
ì
í a ìêê IW $%$0
ìêê a ëçç IW $%$0
ëçç a êää IW $%$0
êää a èêê IW $%$0
èêê a çèè IW $%$0
íïç G%
ìïë G%
ìïå G%
ëïé G%
êïí G%
'6;ðì
ìïèéé 0ESV
í
í
í
í
í
ì
,78 5HFRPPHQGDWLRQ *ïæíê
(ì ð &RD[ õæè Ωô
(ì ð 7ZLVWHGðSDLU õìëí Ωô
ëïíéå 0ESV
ìïèéé 0ESV
í
ì
í
)&& 3DUW çåñ 2SWLRQ $
&68 õ'6ðìô
ìï /LQH OHQJWK IURP WUDQVFHLYHU WR '6;ðì FURVVðFRQQHFW SRLQWï
ëï 0D[LPXP FDEOH ORVV DW ææë N+]ï
ëðëç
L1
)XQFWLRQDO 'HVFULSWLRQ
ï
)LJXUH ëã èíø $0, &RGLQJ
7DEOH éã /;7êíé$ 6HULDO 'DWD 2XWSXW %LWV õ6HH
)LJXUH éô
%LW &HOO
%LW %LW %LW
'è 'ç 'æ
6WDWXV
77,3
í
í
í
5HVHW KDV RFFXUUHGñ RU QR SURJUDP
LQSXWï
ì
í
ì
í
í
í
í
ì
ì
ì
í
ì
7$26 LV DFWLYHï
75,1*
/RFDO /RRSEDFN LV DFWLYHï
7$26 DQG /RFDO /RRSEDFN DUH
DFWLYHï
ì
ì
í
í
í
ì
5HPRWH /RRSEDFN LV DFWLYHï
+RVW 0RGH 2SHUDWLRQ
'30 KDV FKDQJHG VWDWH VLQFH ODVW
&OHDU '30 RFFXUUHGï
7R DOORZ D KRVW PLFURSURFHVVRU WR DFFHVV DQG FRQWURO WKH
/;7êíé$ WKURXJK WKH VHULDO LQWHUIDFHñ 02'( LV VHW +LJKï
ì
ì
ì
ì
í
ì
/26 KDV FKDQJHG VWDWH VLQFH ODVW
&OHDU /26 RFFXUUHGï
7KH VHULDO LQWHUIDFH õ6',î6'2ô XVHV D ìçðELW ZRUG FRQVLVWð
LQJ RI DQ åðELW &RPPDQGî$GGUHVV E\WH DQG DQ åðELW 'DWD
E\WHï )LJXUH ê VKRZV WKH VHULDO LQWHUIDFH GDWD VWUXFWXUH DQG
UHODWLYH WLPLQJï
/26 DQG '30 KDYH ERWK FKDQJHG
VWDWH VLQFH ODVW &OHDU '30 DQG &OHDU
/26 RFFXUUHGï
The Host Mode provides a latched Interrupt output (INT)
which is triggered by a change in the Loss of Signal (LOS)
and/or Driver Performance Monitor (DPM) bits. The Inter-
rupt is cleared when the interrupt condition no longer
exists, and the host processor enables the respective bit in
the serial input data byte. Host Mode also allows control of
the serial data and receive data output timing. The Clock
Edge (CLKE) signal determines when these outputs are
valid, relative to the Serial Clock (SCLK) or RCLK as
listed in Table 3.
7KH /;7êíé$ VHULDO SRUW LV DGGUHVVHG E\ VHWWLQJ ELW $é LQ
WKH $GGUHVVî&RPPDQG E\WHñ FRUUHVSRQGLQJ WR DGGUHVV ìçï
7KH /;7êíé$ FRQWDLQV RQO\ D VLQJOH RXWSXW GDWD UHJLVWHU
VR QR FRPSOH[ FKLS DGGUHVVLQJ VFKHPH LV UHTXLUHGï 7KH
UHJLVWHU LV DFFHVVHG E\ FDXVLQJ WKH &KLS 6HOHFW õCSô LQSXW
WR WUDQVLWLRQ IURP +LJK WR /RZï %LW ì RI WKH VHULDO $GGUHVVî
&RPPDQG E\WH SURYLGHV 5HDGî:ULWH FRQWURO ZKHQ WKH FKLS
LV DFFHVVHGï $ ORJLF ì LQGLFDWHV D UHDG RSHUDWLRQñ DQG D
ORJLF í LQGLFDWHV D ZULWH RSHUDWLRQï 7DEOH é OLVWV VHULDO GDWD
RXWSXW ELW FRPELQDWLRQV IRU HDFK VWDWXVï 6HULDO GDWD ,î2 WLPð
LQJ FKDUDFWHULVWLFV DUH VKRZQ LQ WKH 7HVW 6SHFLILFDWLRQV VHFð
WLRQï
7DEOH êã 9DOLG &/.( 6HWWLQJV
&/.(
2XWSXW
&ORFN
9DOLG (GJH
/2:
5326
51(*
6'2
5&/.
5&/.
6&/.
5LVLQJ
5LVLQJ
)DOOLQJ
+,*+
5326
51(*
6'2
5&/.
5&/.
6&/.
)DOOLQJ
)DOOLQJ
5LVLQJ
ëðëæ
L1
/;7êíé$ /RZð3RZHU 7ìî(ì 6KRUWð+DXO 7UDQVFHLYHU
VLPXOWDQHRXVO\ ZLWK /RFDO /RRSEDFNñ EXW LV LQKLELWHG
GXULQJ 5HPRWH /RRSEDFNï
+DUGZDUH 0RGH 2SHUDWLRQ
,Q +DUGZDUH 0RGH WKH WUDQVFHLYHU LV DFFHVVHG DQG FRQð
WUROOHG WKURXJK LQGLYLGXDO SLQVï :LWK WKH H[FHSWLRQ RI WKH
,17 DQG &/.( IXQFWLRQVñ +DUGZDUH 0RGH SURYLGHV DOO WKH
IXQFWLRQV SURYLGHG LQ WKH +RVW 0RGHï ,Q WKH +DUGZDUH
0RGH 5326 DQG 51(* RXWSXWV DUH YDOLG RQ WKH ULVLQJ
HGJH RI 5&/.ï 7R RSHUDWH LQ +DUGZDUH 0RGHñ 02'(
PXVW EH VHW /RZï (TXDOL]HU &RQWURO VLJQDOV õ(&ì WKURXJK
(&êô DUH LQSXW RQ WKH ,QWHUUXSWñ 6HULDO 'DWD ,Q DQG 6HULDO
'DWD 2XW SLQVï 'LDJQRVWLF FRQWURO IRU 5HPRWH /RRSEDFN
õ5/223ôñ /RFDO /RRSEDFN õ//223ôñ DQG 7UDQVPLW $OO
2QHV õ7$26ô PRGHV LV SURYLGHG WKURXJK WKH LQGLYLGXDO
SLQV XVHG WR FRQWURO VHULDO LQWHUIDFH WLPLQJ LQ WKH +RVW
0RGHï
5HPRWH /RRSEDFN
,Q 5HPRWH /RRSEDFN õ5/223ô PRGHñ WKH WUDQVPLW
GDWD DQG FORFN LQSXWV õ7326ñ 71(* DQG 7&/.ô DUH
LJQRUHGï 7KH 5326 DQG 51(* RXWSXWV DUH ORRSHG
EDFN WKURXJK WKH WUDQVPLW FLUFXLWV DQG RXWSXW RQ 77,3
DQG 75,1* DW WKH 5&/. IUHTXHQF\ï 5HFHLYHU FLUFXLWV
DUH XQDIIHFWHG E\ WKH 5/223 FRPPDQG DQG FRQWLQXH
WR RXWSXW WKH 5326ñ 51(* DQG 5&/. VLJQDOV
UHFHLYHG IURP WKH WZLVWHGðSDLU OLQHï
/RFDO /RRSEDFN
,Q /RFDO /RRSEDFN õ//223ô PRGHñ WKH UHFHLYHU FLUð
FXLWV DUH LQKLELWHGï 7KH WUDQVPLW GDWD DQG FORFN LQSXWV
õ7326ñ 71(* DQG 7&/.ô DUH ORRSHG EDFN RQWR WKH
UHFHLYH GDWD DQG FORFN RXWSXWV õ5326ñ 51(* DQG
5&/.ô WKURXJK WKH 5[ MLWWHU DWWHQXDWRUï 7KH WUDQVPLWð
WHU FLUFXLWV DUH XQDIIHFWHG E\ WKH //223 FRPPDQGï
7KH 7326 DQG 71(* LQSXWV õRU D VWUHDP RI RQHV LI WKH
7$26 FRPPDQG LV DFWLYHô ZLOO EH WUDQVPLWWHG QRUð
PDOO\ï
'LDJQRVWLF 0RGH 2SHUDWLRQ
7UDQVPLW $OO 2QHV
,Q 7UDQVPLW $OO 2QHV õ7$26ô PRGH WKH 7326 DQG
71(* LQSXWV WR WKH WUDQVFHLYHU DUH LJQRUHGï 7KH WUDQVð
FHLYHU WUDQVPLWV D FRQWLQXRXV VWUHDP RI RQHV ZKHQ WKH
7$26 PRGH LV DFWLYDWHGï 7$26 FDQ EH FRPPDQGHG
)LJXUH êã /;7êíé$ 6HULDO ,QWHUIDFH 'DWD 6WUXFWXUH
CS
SCLK
ADDRESS / COMMAND BYTE
DATA INPUT / OUTPUT BYTE
R/W
A0
A1
A2
A3
A4
A5
A6
D0
D1
D2
D3
D4
D5
D6
D7
SDI/ SDO
127(
2XWSXW GDWD E\WH LV WKH
VDPH DV WKH LQSXW GDWD
E\WH H[FHSW IRU ELWV
R/W- = 1: Read
R/W- = 0: Write
0
0
0
0
1
0
X
ADDRESS /
COMMAND
BYTE
R/W
A0
A6
A4
'áèãæ! VKRZQ LQ 7DEOH éï
X=DON’T CARE
SET LOOPBACKS OR RESET
CLEAR INTERRUPTS
INPUT
DATA
BYTE
LOS
D0 (LSB)
DFM
EC1
EC2
EC3
REMOTE
LOCAL
TAOS
D7(MSB)
ëðëå
L1
)XQFWLRQDO 'HVFULSWLRQ
7DEOH èã /;7êíé$ &U\VWDO 6SHFLILFDWLRQV õ([WHUQDOô
3DUDPHWHU 7ì
)UHTXHQF\
(ì
çïìæç 0+]
åïìäë 0+]
)UHTXHQF\ VWDELOLW\
‘ ëí SSP # ëè ƒ&
‘ ëè SSP IURP ðéí ƒ& WR åè ƒ&
õ5HI ëè ƒ& UHDGLQJô
‘ ëí SSP # ëè ƒ&
‘ ëè SSP IURP ðéí ƒ& WR òåè ƒ&
õ5HI ëè ƒ& UHDGLQJô
3XOODELOLW\
&/ ìì S) WR ìåïæ S)ñ ò∆) ìæè WR ìäè SSP &/ ìì S) WR ìåïæ S)ñ ò∆) äè WR ììè SSP
&/ ìåïæ S) WR êé S)ñ ð∆) ìæè WR ìäè SSP &/ ìåïæ S) WR êé S)ñ ð∆) äè WR ììè SSP
(IIHFWLYH VHULHV UHVLVWDQFH éí Ω 0D[LPXP
êí Ω 0D[LPXP
$7
&U\VWDO FXW
$7
5HVRQDQFH
3DUDOOHO
ëïí P:
)XQGDPHQWDO
+&éä õ5ê:ôñ &2 æ S) PD[LPXP
&0 ìæ I) W\SLFDO
3DUDOOHO
ëïí P:
0D[LPXP GULYH OHYHO
0RGH RI RSHUDWLRQ
&U\VWDO KROGHU
)XQGDPHQWDO
+&éä õ5ê:ôñ &2 æ S) PD[LPXP
&0 ìæ I) W\SLFDO
ëðëä
L1
/;7êíé$ /RZð3RZHU 7ìî(ì 6KRUWð+DXO 7UDQVFHLYHU
IUDPHU SURYLGLQJ WKH GLJLWDO LQWHUIDFH ZLWK WKH KRVW FRQWUROð
OHUï %RWK GHYLFHV DUH FRQWUROOHG WKURXJK WKH VHULDO LQWHUIDFHï
$Q /;3çíí$ &ORFN $GDSWHU õ&/$'ô SURYLGHV WKH ëïíéå
0+] V\VWHP EDFNSODQH FORFNñ ORFNHG WR WKH UHFRYHUHG
ìïèéé 0+] FORFN VLJQDOï 7KH SRZHU VXSSO\ LQSXWV DUH WLHG
WR D FRPPRQ EXV ZLWK DSSURSULDWH GHFRXSOLQJ FDSDFLWRUV
LQVWDOOHG õçå “) RQ WKH WUDQVPLW VLGHñ ìïí “) DQG íïì “) RQ
WKH UHFHLYH VLGHôï
$33/,&$7,21 ,1)250$7,21
ìïèéé 0ESV 7ì ,QWHUIDFH
$SSOLFDWLRQ
)LJXUH é LV D W\SLFDO ìïèéé 0ESV 7ì DSSOLFDWLRQï 7KH
/;7êíé$ LV VKRZQ LQ WKH +RVW 0RGH ZLWK D 7ìî(6)
)LJXUH éã 7\SLFDO /;7êíé$ ìïèéé 0ESV 7ì $SSOLFDWLRQ õ+RVW 0RGHô
òè9
0RGH
0&/.
6&/.
CS
INT
µ3
6HULDO
3RUW
6',
&RQWURO
DQG
0RQLWRU
&/.(
0&/.
/26
6'2
&F
75,1*
5W
'30
/;7êíé$
7UDQVPLW
/LQH
éæíì S)
77,3
05,1*
07,3
7U
5W
7326
71(*
7&/.
5326
51(*
5&/.
)UDPHU
57,3
5U
5U
5HFHLYH
/LQH
/;3çíí$
55,1*
ë&7ãì
&/.,
FSI
CLKO
2.048 MHz
NOTE
íïì µ)
ìïí µ)
ìï 7\SLFDO YDOXH éæí S)ï
$GMXVW IRU DFWXDO ERDUG
SDUDVLWLFV WR REWDLQ RSWLð
PXP UHWXUQ ORVVï
çå µ)
òè9
ëðêí
L1
$SSOLFDWLRQ ,QIRUPDWLRQ
CRC4 Framer. The hard-wired control lines for TAOS,
LLOOP and RLOOP are individually controllable, and the
LLOOP and RLOOP lines are also tied to a single control
for the Reset function. This configuration is illustrated
with a crystal in place to enable the LXT304A Jitter Atten-
uation Loop, and a single power supply bus.
ëïíéå 0ESV (ì ,QWHUIDFH
$SSOLFDWLRQV
Figure 5 is a 2.048 Mbps E1 TWP application using 15 Ω
Rt resistors in line with the transmit transformer to provide
high return loss and surge protection. When high return
loss is not a critical factor, a 1:1 or 1:1.26 transformer with-
out in-line resistors provides maximum power savings. The
LXT304A is shown in Hardware Mode with a typical E1/
)LJXUH èã 7\SLFDO /;7êíé$ (ì ëïíéå 0ESV ìëí Ω $SSOLFDWLRQ õ+DUGZDUH 0RGHô
/LQH
/HQJWK
VHWWLQJ
(&ì
EC2
EC2
0RGH
0&/.
7$26
5/223
//223
/26
&RQWURO
DQG
0RQLWRU
&F
77,3
5W õìèΩô
/;7êíé$
7UDQVPLW
/LQH
éæíì S)
'30
75,1*
07,3
7U
5W õìèΩô
7326
71(*
7&/.
5326
51(*
5&/.
)UDPHU
05,1*
57,3
5U
5U
5HFHLYH
/LQH
/;3çíí$
55,1*
ë&7ãì
&/.,
FSI
CLKO
1.544 MHz
NOTE
íïì µ)
ìïí µ)
ìï 7\SLFDO YDOXH éæí S)ï
$GMXVW IRU DFWXDO ERDUG
SDUDVLWLFV WR REWDLQ RSWLð
PXP UHWXUQ ORVVï
çå µ)
òè9
ëðêì
L1
/;7êíé$ /RZð3RZHU 7ìî(ì 6KRUWð+DXO 7UDQVFHLYHU
isting dual-card architectures. With an appropriate output
'é &KDQQHO %DQN $SSOLFDWLRQV
transformer, the LXT304A can produce full 6.0 V peak am-
plitude pulses suitable for D4 Channel Bank applications
with separate pulse shaping/LBO cards.
Existing D4 Channel Bank architectures frequently em-
ploy: (1) a plug-in card for T1 pulse generation (6.0 V
peak); and (2) a separate card for pulse shaping and Line
Build-Out (LBO). The LXT304A integrates the functions
of both cards on a single chip producing a DSX-1 compat-
ible, 3.0 V peak output pulse with a standard transformer.
In new designs, the LXT304A can replace two cards with
one. However, the LXT304A is also compatible with ex-
To achieve the 6.0 V peak output, the FCC Part 68-010
Equalizer Code setting is used. (EC = 010.) With the stan-
dard 1:1.15 transformer, this code produces a 3.0 V peak
pulse. However, doubling the transformer turns ratio to
1:2.30 produces the desired 6.0 V peak pulse.
7DEOH çã 7ìî(ì ,QSXWî2XWSXW &RQILJXUDWLRQV
5Uë
õΩô
5Wë
õΩô
7UDQVPLW
7\SLFDO 7;
&DEOH
õΩô
%LW 5DWH
õ0ESVô
&U\VWDO
;7$/
(&êîëîì
&F
õµ)ô
7UDQVIRUPHUì
õ7Uô
5HWXUQ /RVVê
õG%ô
ìïèéé õ7ìô
/;&çìæç ìíí
/;&åìäë ìëí
æè
ëíí
íîìîì ð ìîìîì ìãìïìè
í
íïè
íïéæ
í
í
íïéæ
ìãë
äïì
äïì
í
ìå
ìå
íé
ìãëïê
ìãëïê
íîìîíé
ëïíéå õ(ìô
ëéí
ìèí
íîíîí
íîíîí
íîíîì
íîíîì
ìãìïëç
ìãë
ìãì
í
äïì
í
íïè
ìë
íïè
ìå
íïéæ
í
íïéæ
í
ìãë
ìïè
íîíîí
íîíîí
íîíîì
íîíîì
ìãì
ìãë
ìãì
ìãë
í
äïì
ìí
íïè
ìå
è
íïéæ
í
í
í
ìéïê
ìí
1.Transformer turns ratio accuracy is ± 2%.
2. Rr and Rt values are ± 1%.
3. Typical return loss, 51 kHz to 3.072 MHz band.
4.D4 Channel Bank application.
ëðêë
L1
7HVW 6SHFLILFDWLRQV
7(67 63(&,),&$7,216
127(
7KH PLQLPXP DQG PD[LPXP YDOXHV LQ 7DEOHV æ WKURXJK ìê DQG )LJXUHV ç WKURXJK ìì UHSUHVHQW WKH SHUIRUPDQFH VSHFLILFDð
WLRQV RI WKH /;7êíé$ DQG DUH JXDUDQWHHG E\ WHVWñ H[FHSW ZKHUH QRWHG E\ GHVLJQï
7DEOH æã $EVROXWH 0D[LPXP 5DWLQJV
3DUDPHWHU
'& VXSSO\ õUHIHUHQFHG WR *1'ô
,QSXW YROWDJHñ DQ\ SLQì
6\P
0LQ
0D[
8QLWV
9
59òñ 79ò
9,1
¤íïê
çïí
9
5*1' ð íïê
59ò ò íïê
P$
ƒ&
,QSXW FXUUHQWñ DQ\ SLQë
6WRUDJH WHPSHUDWXUH
,,1
ðìí
ðçè
ìí
767*
ìèí
&$87,21
2SHUDWLRQV DW RU EH\RQG WKHVH OLPLWV PD\ UHVXOW LQ SHUPDQHQW GDPDJH WR WKH GHYLFHï
1RUPDO RSHUDWLRQ LV QRW JXDUDQWHHG DW WKHVH H[WUHPHVï
ìï ([FOXGLQJ 57,3 DQG 55,1* ZKLFK PXVW VWD\ EHWZHHQ ðç9 DQG õ59ò ò íïêô 9ï
ëï 7UDQVLHQW FXUUHQWV RI XS WR ìíí P$ ZLOO QRW FDXVH 6&5 ODWFK XSï 77,3ñ 75,1*ñ 79ò DQG 7*1' FDQ ZLWKVWDQG D FRQWLQXRXV FXUUHQW RI ìíí P$ï
7DEOH åã 5HFRPPHQGHG 2SHUDWLQJ &RQGLWLRQV DQG &KDUDFWHULVWLFV
3DUDPHWHU
6\P
0LQ
7\S
0D[
8QLWV
'& VXSSO\ì
59òñ 79ò
éïæè
ðéí
èïí
ëè
èïëè
åè
9
$PELHQW RSHUDWLQJ WHPSHUDWXUH
7$
ƒ &
ìï 79ò PXVW QRW H[FHHG 59ò E\ PRUH WKDQ íïê 9ï
7DEOH äã (OHFWULFDO &KDUDFWHULVWLFV õ8QGHU 5HFRPPHQGHG 2SHUDWLQJ &RQGLWLRQVô
3DUDPHWHU
6\P
0LQ
0D[ 8QLWV 7HVW &RQGLWLRQV
ìííø RQHV GHQVLW\
P: ÷ PD[LPXP OLQH
7RWDO SRZHU GLVVLSDWLRQìñê
3'
¤
éíí
OHQJWK # èïëè 9
+LJK OHYHO LQSXW YROWDJHëñê õSLQV ìðèñ ìíñ ëêðëåô
/RZ OHYHO LQSXW YROWDJHëñê õSLQV ìðèñ ìíñ ëêðëåô
+LJK OHYHO RXWSXW YROWDJHëñê õSLQV çðåñ ììñ ìëñ ëêñ ëèô
9,+
9,/
92+
ëïí
¤
¤
íïå
¤
9
9
ëïé
9
,287 ðéíí µ$
ìïPower dissipation while driving 75 Ω load over operating temperature range. Includes device and load. Digital input lev-
els are within 10% of the supply rails and digital outputs are driving a 50 pF capacitive load.
2. Functionality of pins 23 and 25 depends on mode. See Host/Hardware Mode descriptions.
3.Output drivers will output CMOS logic levels into CMOS loads.
4. Except MTIP and MRING ILL = ± 50 µA.
ëðêê
L1
/;7êíé$ /RZð3RZHU 7ìî(ì 6KRUWð+DXO 7UDQVFHLYHU
7DEOH äã (OHFWULFDO &KDUDFWHULVWLFV õ8QGHU 5HFRPPHQGHG 2SHUDWLQJ &RQGLWLRQVô ¤ FRQWLQXHG
3DUDPHWHU
6\P
0LQ
0D[ 8QLWV 7HVW &RQGLWLRQV
/RZ OHYHO RXWSXW YROWDJHëñê õSLQV çðåñ ììñ ìëñ ëêñ ëèô
,QSXW OHDNDJH FXUUHQWé
7KUHHðVWDWH OHDNDJH FXUUHQWë õSLQ ëèô
92/
,//
¤
íïé
òìí
òìí
9
,287 ìïç P$
ðìí
ðìí
µ$
µ$
,ê/
ìïPower dissipation while driving 75 Ω load over operating temperature range. Includes device and load. Digital input lev-
els are within 10% of the supply rails and digital outputs are driving a 50 pF capacitive load.
2. Functionality of pins 23 and 25 depends on mode. See Host/Hardware Mode descriptions.
3.Output drivers will output CMOS logic levels into CMOS loads.
4. Except MTIP and MRING ILL = ± 50 µA.
7DEOH ìíã $QDORJ &KDUDFWHULVWLFV õ8QGHU 5HFRPPHQGHG 2SHUDWLQJ &RQGLWLRQVô
3DUDPHWHU
0LQ
7\Sì
0D[
8QLWV
7HVW &RQGLWLRQV
PHDVXUHG DW WKH '6;
PHDVXUHG DW OLQH VLGH
$0, RXWSXW SXOVH
DPSOLWXGHV
'6;ðì
(ì
ëïé
ëïæ
¤
êïí
êïí
æè
¤
êïç
êïê
¤
9
9
5HFRPPHQGHG RXWSXW ORDG DW 77,3 DQG 75,1*
ìí +] ð å N+]
Ω
¤
íïíì
íïíëè
íïíëè
íïíè
¤
8,
å N+] ð éí N+]
ìí +] ð éí N+]
¤
¤
8,
-LWWHU DGGHG E\ WKH
WUDQVPLWWHUë
¤
¤
8,
%URDG %DQG
¤
¤
8,
6HQVLWLYLW\ EHORZ '6;
õí G% ëïé 9ô
ìêïç
èíí
¤
¤
G%
¤
¤
P9
9
/RVV RI 6LJQDO WKUHVKROG
'DWD GHFLVLRQ WKUHVKROG
íïê
æí
èí
ìæè
¤
¤
'6;ðì
(ì
çê
éê
ìçí
íïé
¤
ææ
ø SHDN
ø SHDN
¤
èæ
$OORZDEOH FRQVHFXWLYH ]HURV EHIRUH /26
ìäí
¤
,QSXW MLWWHU WROHUDQFH
ìí N+] ð ìíí N+]
8,
-LWWHU DWWHQXDWLRQ FXUYH FRUQHU IUHTXHQF\ê
0LQLPXP UHWXUQ ORVVéïè
ê
¤
+]
G%
7UDQVPLW
0LQ
5HFHLYH
7\S 0LQ
7\S
èì N+] ð ìíë N+]
ìå
ìå
ìå
¤
¤
¤
ëí
ëí
ëí
¤
¤
¤
G%
G%
G%
ìíë N+] ð ëïíéå N+]
ëïíéå N+] ð êïíæë N+]
ìï 7\SLFDO YDOXHV DUH PHDVXUHG DW ëè °& DQG DUH IRU GHVLJQ DLG RQO\â QRW JXDUDQWHHG DQG QRW VXEMHFW WR SURGXFWLRQ WHVWLQJï
ëï ,QSXW VLJQDO WR 7&/. LV MLWWHUðIUHHï
3. Circuit attenuates jitter at 20 dB/decade above the corner frequency.
4. In accordance with ITU G.703/ETS 300166 return loss specifications when wired per Figure 7 (E1).
5. Guaranteed by design.
ëðêé
L1
7HVW 6SHFLILFDWLRQV
)LJXUH çã 7\SLFDO 5HFHLYH ,QSXW -LWWHU 7ROHUDQFH õ/RRS 0RGHô
ìíííí 8,
ìëíí 8,
ìííí 8,
ìêå 8,
ìíí 8,
/;7êíé$ 3HUIRUPDQFH
3XE çëéìì
'HF ìääí
ëå 8,
ìí 8,
ìïë 8,
ì 8,
íïé 8,
êí N+]
ìí N+] ìíí N+]
íïì 8,
ìí +]
ìíí +]
ì N+]
ì +]
)UHTXHQF\
)LJXUH æã /;7êíé$ 5HFHLYH -LWWHU 7UDQVIHU 3HUIRUPDQFH õ7\SLFDOô
ëí G%
$7÷7 çëéìì 7HPSODWH 6ORSH
HTXLYDOHQW WR ëí G% SHU GHFDGH
íïè G% î ê +]
íïè G% î éí +]
&&,77 *ïæêè 7HPSODWH 6ORSH
HTXLYDOHQW WR ëí G% SHU GHFDGH
í G%
ðìí G%
ðëí G%
ðêí G%
ðéí G%
ðçí G%
ìäïè G% î
éíí +]
ìäïè G% î
ìíí +]
$7÷7 çëéìì 7HPSODWH 6ORSH
HTXLYDOHQW WR éí G% SHU GHFDGH
7\SLFDO /;7êíé$ 3HUIRUPDQFH
ëí +]
ìéèí +]
ìí +]
ìí +]
ìí +]
ìí +]
ìí +]
ìí +]
)UHTXHQF\
ëðêè
L1
/;7êíé$ /RZð3RZHU 7ìî(ì 6KRUWð+DXO 7UDQVFHLYHU
7DEOH ììã /;7êíé$ 5HFHLYH 7LPLQJ &KDUDFWHULVWLFV õ6HH )LJXUH åô
7HVW
&RQGLWLRQV
3DUDPHWHU
6\P
0LQ
7\Sì
0D[
8QLWV
5HFHLYH FORFN GXW\ F\FOH
5&/.G
W3:
éí
¤
¤
çí
¤
ø
QV
QV
QV
QV
QV
QV
'6;ðì
(ì
êëé
ëéé
ëæé
ìäé
ëæé
ìäé
5HFHLYH FORFN SXOVH ZLGWK
W3:
¤
¤
5326î51(* WR 5&/. ULVLQJ
VHWXS WLPH
'6;ðì
(ì
W685
W685
W+5
¤
¤
¤
¤
5&/. ULVLQJ WR 5326î51(*
KROG WLPH
'6;ðì
(ì
¤
¤
W+5
¤
¤
ìï 7\SLFDO YDOXHV DUH DW ëè ƒ& DQG DUH IRU GHVLJQ DLG RQO\â WKH\ DUH QRW JXDUDQWHHG DQG QRW VXEMHFW WR SURGXFWLRQ WHVWLQJï
)LJXUH åã /;7êíé$ 5HFHLYH &ORFN 7LPLQJ 'LDJUDP
3:
W
3:+
W
3:/
W
5&/.
685
W
+5
W
5326
51(*
+RVW 0RGH
&/.( ì
685
W
+5
W
+RVW 0RGH
&/.( íñ ÷
+î: 0RGH
5326
51(*
ëðêç
L1
7HVW 6SHFLILFDWLRQV
7DEOH ìëã /;7êíé$ 0DVWHU &ORFN DQG 7UDQVPLW 7LPLQJ &KDUDFWHULVWLFV
õ6HH )LJXUH äô
3DUDPHWHU
6\P
0LQ
7\Sì
0D[
8QLWV
'6;ðì
(ì
0&/.
0&/.
0&/.W
0&/.G
IF
¤
¤
ìïèéé
ëïíéå
‘ìíí
¤
¤
¤
0+]
0+]
SSP
ø
0DVWHU FORFN IUHTXHQF\
0DVWHU FORFN WROHUDQFH
0DVWHU FORFN GXW\ F\FOH
&U\VWDO IUHTXHQF\
¤
¤
éí
¤
çí
¤
'6;ðì
(ì
çïìæç
åïìäë
ìïèéé
ëïíéå
‘èí
¤
0+]
0+]
0+]
0+]
SSP
ø
IF
¤
¤
'6;ðì
(ì
7&/.
7&/.
7&/.W
7&/.G
W687
¤
¤
7UDQVPLW FORFN IUHTXHQF\
¤
¤
7UDQVPLW FORFN WROHUDQFH
¤
¤
7UDQVPLW FORFN GXW\ F\FOH
ìí
ëè
ëè
äí
¤
7326î71(* WR 7&/. VHWXS WLPH
7&/. WR 7326î71(* KROG WLPH
¤
QV
W+7
¤
¤
QV
ìï 7\SLFDO YDOXHV DUH DW ëè ƒ& DQG DUH IRU GHVLJQ DLG RQO\â WKH\ DUH QRW JXDUDQWHHG DQG QRW VXEMHFW WR SURGXFWLRQ WHVWLQJï
)LJXUH äã /;7êíé$ 7UDQVPLW &ORFN 7LPLQJ 'LDJUDP
7&/.
687
W
+7
W
7326
71(*
ëðêæ
L1
/;7êíé$ /RZð3RZHU 7ìî(ì 6KRUWð+DXO 7UDQVFHLYHU
7DEOH ìêã /;7êíé$ 6HULDO ,î2 7LPLQJ &KDUDFWHULVWLFV õ6HH )LJXUHV ìí DQG ììô
3DUDPHWHU
6\P
0LQ
7\Sì
0D[
8QLWV
7HVW &RQGLWLRQV
5LVHî)DOO WLPH ð DQ\ GLJLWDO RXWSXW
6', WR 6&/. VHWXS WLPH
6&/. WR 6', KROG WLPH
6&/. ORZ WLPH
W5)
W'&
¤
èí
èí
ëéí
ëéí
¤
¤
¤
ìíí
¤
QV
QV
QV
QV
QV
QV
QV
QV
QV
QV
QV
/RDG ìïç P$ñ èí S)
W&'+
W&/
¤
¤
¤
¤
6&/. KLJK WLPH
W&+
¤
¤
6&/. ULVH DQG IDOO WLPH
CS WR 6&/. VHWXS WLPH
6&/. WR CS KROG WLPH
CS LQDFWLYH WLPH
W5ñ W)
W&&
¤
èí
¤
èí
èí
ëèí
¤
¤
W&&+
W&:+
W&'9
W&'=
¤
¤
¤
¤
6&/. WR 6'2 YDOLG
¤
ëíí
¤
6&/. IDOOLQJ HGJH RU CS ULVLQJ
¤
ìíí
HGJH WR 6'2 KLJK =
ìï 7\SLFDO YDOXHV DUH DW ëèƒ & DQG DUH IRU GHVLJQ DLG RQO\â WKH\ DUH QRW JXDUDQWHHG DQG QRW VXEMHFW WR SURGXFWLRQ WHVWLQJï
)LJXUH ìíã /;7êíé$ 6HULDO 'DWD ,QSXW 7LPLQJ 'LDJUDP
&6
W&:+
W&&+
W&+
W&&
W'&
W&/
6&/.
6',
W&'+
W&'+
/6%
06%
/6%
&21752/ %<7(
'$7$ %<7(
)LJXUH ììã /;7êíé$ 6HULDO 'DWD 2XWSXW 7LPLQJ 'LDJUDP
&6
W&'=
6&/.
W&'9
W&'=
+,*+ =
6'2
&/.( ì
W&'9
+,*+ =
6'2
&/.( í
ëðêå
L1
相关型号：
SI9130DB
5- and 3.3-V Step-Down Synchronous ConvertersWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135LG-T1
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135LG-T1-E3
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135_11
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9136_11
Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130CG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130LG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130_11
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137DB
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137LG
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9122E
500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification DriversWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
©2020 ICPDF网 联系我们和版权申明