ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
TIMING SPECIFICATIONS—ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
V
CC
= 3.3 V, T
A
= 25°C, unless otherwise noted.
Table 5.
Parameter
RECEIVER
Time to Shutdown (t
SHDN
)
ADM3483/ADM3485/ADM3491
Propagation Delay, Low-to-High Level (t
RPLH
)
ADM3485/ADM3490/ADM3491
ADM3483/ADM3488
Propagation Delay, High-to-Low Level (t
RPHL
)
ADM3485/ADM3490/ADM3491
ADM3483/ADM3488
|t
PLH
– t
PHL
| Propagation Delay Skew (t
RPDS
)
ADM3485/ADM3490/ADM3491
ADM3483/ADM3488
RECEIVER OUTPUT ENABLE/DISABLE TIMES
(ADM3483/ADM3485/ADM3491 ONLY)
Output Enable Time to Low Level (t
PRZL
)
Output Enable Time to High Level (t
PRZH
)
Output Disable Time from High Level (t
PRHZ
)
Output Disable Time from Low Level (t
PRLZ
)
Output Enable Time from Shutdown to
Low Level (t
PRSL
)
Output Enable Time from Shutdown to
High Level (t
PRSH
)
1
Min
Typ
Max
Unit
Test Conditions/Comments
80
25
25
25
25
190
65
75
65
75
300
90
120
90
120
10
20
ns
ns
ns
ns
ns
ns
ns
V
ID
= 0 V to 3.0 V, C
L
= 15 pF (see Figure 14 and Figure 20)
V
ID
= 0 V to 3.0 V, C
L
= 15 pF (see Figure 14 and Figure 20)
V
ID
= 0 V to 3.0 V, C
L
= 15 pF (see Figure 14 and Figure 20)
25
25
25
25
720
720
50
50
45
45
1400
1400
ns
ns
ns
ns
ns
ns
C
L
= 15 pF (see Figure 15 and Figure 21)
C
L
= 15 pF (see Figure 15 and Figure 21)
C
L
= 15 pF (see Figure 15 and Figure 21)
C
L
= 15 pF (see Figure 15 and Figure 21)
C
L
= 15 pF (see Figure 15 and Figure 21)
C
L
= 15 pF (see Figure 15 and Figure 21)
The transceivers are put into shutdown by bringing the RE high and DE low. If the inputs are in this state for less than 80 ns, the parts are guaranteed not to enter
shutdown. If the parts are in this state for 300 ns or more, the parts are guaranteed to enter shutdown.
Rev. B | Page 6 of 20
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