Datasheet

Rev. 1.0/Sep. 2012 21
Slew Rate Definitions for Differential Input Signals
Input slew rate for differential signals (CK, CK and DQS, DQS) are defined and measured as shown in table
and figure below.
Notes:
The differential signal (i.e. CK-CK and DQS-DQS) must be linear between these thresholds.
Differential Input Slew Rate Definition for DQS, DQS and CK, CK
Differential Input Slew Rate Definition
Description
Measured
Defined by
Min
Max
Differential input slew rate for rising edge
(CK-CK
and DQS-DQS)
V
ILdiffmax
V
IHdiffmin
[VIHdiffmin-VILdiffmax] / DeltaTRdiff
Differential input slew rate for falling edge
(CK-CK
and DQS-DQS)
V
IHdiffmin
V
ILdiffmax
[VIHdiffmin-VILdiffmax] / DeltaTFdiff
Delta
TFdiff
Delta
TRdiff
V
IHdiffmin
V
ILdiffmax
0
Differential Input Voltage (i.e. DQS-DQS; CK-CK)