Hynix HMT351U7CFR8A-PBT0 Benutzerhandbuch
Rev. 1.1 / Jul. 2013
19
AC and DC Logic Input Levels for Differential Signals
Differential signal definition
Definition of differential ac-swing and “time above ac-level” t
DVAC
time
Diff
er
en
tial I
nput V
oltage(
i.e.DQS - DQS#, CK - CK#)
V
IL.DIFF.AC.MAX
V
IL.DIFF.MAX
0
V
IL.DIFF.MIN
V
IL.DIFF.AC.MIN
t
DVAC
half cycle
t
DVAC