Data Sheet
V
CC
= 3.3 V, T
A
= 25°C, unless otherwise noted.
Table 3.
Parameter
DRIVER
Differential Output Delay (t
DD
)
Differential Output Transition Time (t
TD
)
Propagation Delay, Low-to-High Level (t
PLH
)
Propagation Delay, High-to-Low Level (t
PHL
)
|t
PLH
– t
PHL
| Propagation Delay Skew
1
(t
PDS
)
DRIVER OUTPUT ENABLE/DISABLE TIMES (ADM3485/
ADM3491 ONLY)
Output Enable Time to Low Level (t
PZL
)
Output Enable Time to High Level (t
PZH
)
Output Disable Time from High Level (t
PHZ
)
Output Disable Time from Low Level (t
PLZ
)
Output Enable Time from Shutdown to Low Level (t
PSL
)
Output Enable Time from Shutdown to High Level (t
PSH
)
1
ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
TIMING SPECIFICATIONS—ADM3485/ADM3490/ADM3491
Min
1
3
7
7
Typ
22
8
22
22
Max
35
25
35
35
8
Unit
ns
ns
ns
ns
ns
Test Conditions/Comments
R
L
= 60 Ω
(see
R
L
= 60 Ω
(see
R
L
= 27 Ω
(see
R
L
= 27 Ω
(see
R
L
= 27 Ω
(see
45
45
40
40
650
650
90
90
80
80
900
900
ns
ns
ns
ns
ns
ns
R
L
= 110 Ω
(see
R
L
= 110 Ω
(see
R
L
= 110 Ω
(see
R
L
= 110 Ω
(see
R
L
= 110 Ω
(see
R
L
= 110 Ω
(see
Measured on |t
PLH
(Y) − t
PHL
(Y)| and |t
PLH
(Z) − t
PHL
(Z)|.
TIMING SPECIFICATIONS—ADM3483/ADM3488
V
CC
= 3.3 V, T
A
= 25°C, unless otherwise noted.
Table 4.
Parameter
DRIVER
Differential Output Delay (t
DD
)
Differential Output Transition Time (t
TD
)
Propagation Delay, Low-to-High Level (t
PLH
)
Propagation Delay, High-to-Low Level (t
PHL
)
|t
PLH
– t
PHL
| Propagation Delay Skew
1
(t
PDS
)
DRIVER OUTPUT ENABLE/DISABLE TIMES (ADM3483 ONLY)
Output Enable Time to Low Level (t
PZL
)
Output Enable Time to High Level (t
PZH
)
Output Disable Time from High Level (t
PHZ
)
Output Disable Time from Low Level (t
PLZ
)
Output Enable Time from Shutdown to Low Level (t
PSL
)
Output Enable Time from Shutdown to High Level (t
PSH
)
1
Min
600
400
700
700
Typ
900
700
1000
1000
100
900
600
50
50
1.9
2.2
Max
1400
1200
1500
1500
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
μs
μs
Test Conditions/Comments
R
L
= 60 Ω
(see
R
L
= 60 Ω
(see
R
L
= 27 Ω
(see
R
L
= 27 Ω
(see
R
L
= 27 Ω
(see
R
L
= 110 Ω
(see
R
L
= 110 Ω
(see
R
L
= 110 Ω
(see
R
L
= 110 Ω
(see
R
L
= 110 Ω
(see
R
L
= 110 Ω
(see
1300
800
80
80
2.7
3.0
Measured on |t
PLH
(Y) − t
PHL
(Y)| and |t
PLH
(Z) − t
PHL
(Z)|.
Rev. E | Page 5 of 20