www.德州仪器.com
DAC6574
SLAS408–DECEMBER2003
timingcharacteristics(持续)
V
DD
=2.7vto5.5v,r
L
=2k
Ω
tognd;allspecifications-40
°
Cto+105
°
c,unlessotherwisespecified.
SYMBOLPARAMETERTESTCONDITIONSMINTYPMAXUNITS
Standardmode300ns
fastmode20+0.1c
B
300ns
t
FDA
FalltimeofSDAsignal
高-speedmode,c
B
=100pFmax1080ns
高-speedmode,c
B
=400pFmax20160ns
standardmode4.0µs
setuptimeforstopcon-
t
SU
;t
STO
Fastmode600ns
dition
高-speedmode160ns
CapacitiveloadforSDAand
C
B
400pF
SCL
Fastmode50ns
pulsewidthofspikesup-
t
SP
pressed
高-speedmode10ns
Standardmode
NoisemarginattheHIGH
V
NH
levelforeachconnectedde-fastmode0.2v
DD
V
恶行(includinghysteresis)
高-speedmode
Standardmode
NoisemarginattheLOW
V
NL
levelforeachconnectedde-fastmode0.1v
DD
V
恶行(includinghysteresis)
高-speedmode
5
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