www.德州仪器.com
rt = 100
Ω
(typ)
300 k
Ω
300 k
Ω
V
CC
V
它
≈
2.3 v
一个
B
Y
sn65lvds386/388a/390,sn65lvdt386/388a/390
sn75lvds386/388a/390,sn75lvdt386/388a/390
SLLS394G–SEPTEMBER1999–REVISEDNOVEMBER2004
applicationinformation(持续)
figure13.打开-circuitfailsafeofthelvdsreceiver
itisonlyundertheseconditionsthattheoutputofthereceiverisvalidwithlessthana100-mvdifferentialinput
voltagemagnitude.thepresenceoftheterminationresistor,rt,doesnotaffectthefail-safefunctionaslongasit
isconnectedasshowninthefigure.otherterminationcircuitsmayallowadccurrenttogroundthatcoulddefeat
thepullupcurrentsfromthereceiverandthefail-safefeature.
12