XRT7298
5HY
PIN DESCRIPTION (CONT’D)
Pin #
Symbol
T ype
Description
%39
2
Bipolar Violation Output
7KLV SLQ JRHV KLJK IRU RQH ELW SHULRG ZKHQ D ELSRODU YLRODWLRQ QRW
FRUUHVSRQGLQJ WR WKH DSSURSULDWH FRGLQJ UXOH RU FRGLQJ HUURU LV GHWHFWHG LQ WKH 53'$7$
51'$7$ VLJQDOV
3//287
2
PLL Clock Output.
&ORFN RXWSXW V\QFKURQL]HG WR 7&/.
51(*
2
Receive NegativeData.
7KLV VLJQDO LV WKH GHFRGHG YHUVLRQ RI 51'$7$
5326
2
Receive Positive Data
7KLV VLJQDO LV WKH GHFRGHG YHUVLRQ RI 53'$7$
5&/.2
2
Receive Clock Output
7KLV VLJQDO LV WKH LQYHUWHG YHUVLRQ RI 5&/.
'02
2
Driver Monitor Output.
,I QR WUDQVPLWWHG $0, VLJQDO LV SUHVHQW RQ 07,3 DQG 05,1* IRU
± 7&/. FORFN SHULRGV '02 JRHV KLJK XQWLO WKH QH[W $0, VLJQDO LV GHWHFWHG
05,1*
,
Monitor Ring Input
$0, VLJQDO IURP 75,1* FDQ EH FRQQHFWHG WR WKLV SLQ IRU OLQH GULYHU IDLO
XUH GHWHFWLRQ ,QWHUQDOO\ SXOOHG KLJK
07,3
,
Monitor T ip Input
$0, VLJQDO IURP 77,3 FDQ EH FRQQHFWHG WR WKLV SLQ IRU OLQH GULYHU IDLOXUH
GHWHFWLRQ ,QWHUQDOO\ SXOOHG KLJK
*1'$
Analog Ground
IRU DQDORJ FLUFXLWU\
75,1*
2
T ransmit Ring Output
7UDQVPLW $0, VLJQDO LV GULYHQ WR WKH OLQH YLD D WUDQVIRUPHU IURP
WKLV SLQ
77,3
2
T ransmit T ip Output.
7UDQVPLW $0, VLJQDO LV GULYHQ WR WKH OLQH YLD D WUDQVIRUPHU IURP WKLV
SLQ
9''$
5V Analog Supply (
± 5%) IRU DQDORJ FLUFXLWU\
7;/(9
,
T ransmit Level Select.
7KH RXWSXW VLJQDO DPSOLWXGH DW 77,3 DQG 75,1* FDQ EH YDULHG E\
VHWWLQJ WKLV SLQ KLJK RU ORZ :KHQ WKH FDEOH OHQJWK LV JUHDWHU WKDQ IW 7;/(9 VKRXOG EH VHW
KLJK :KHQ LW LV EHORZ IW LW VKRXOG EH VHW ORZ 7KLV SLQ LV DFWLYH RQO\ ZLWK SLQ VHW WR
'6 RU 676 PRGH
,&7
,
In-circuit T esting.
$ ORZ DW WKLV SLQ FDXVHV DOO GLJLWDO DQG DQDORJ RXWSXWV WR JR LQWR D KLJKLP
SHGDQFH VWDWH WR DOORZ IRU LQFLUFXLW WHVWLQJ ,QWHUQDOO\ SXOOHG KLJK
53'$7$
,
Receive Positive Data
15= LQSXW GDWD WR WKH GHFRGHU EORFN 6DPSOHG RQ WKH IDOOLQJ HGJH RI
5&/.
51'$7$
,
Receive NegativeData
15= LQSXW GDWD RI WKH GHFRGHU EORFN 6DPSOHG RQ
IDOOLQJ HGJH RI 5&/.
Note:
1 If a bipolarviolationoccurs,RPOS andRNEG cancorrespondto thedecodedversions of RNDAT A andRPDAT A respectively.If
DECODIS is high,RPOS andRNEG alwaystrackRPDAT A andRNDAT A respectively
.