ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
TIMING SPECIFICATIONS—ADM3485/ADM3490/ADM3491
VCC = 3.3 V, TA = 25°C, unless otherwise noted.
Table 3.
Parameter
DRIVER
Min
Typ
Max
Unit
Test Conditions/Comments
Differential Output Delay (tDD
)
1
3
7
7
22
8
35
25
35
35
8
ns
ns
ns
ns
ns
RL = 60 Ω (see Figure 10 and Figure 16)
RL = 60 Ω (see Figure 10 and Figure 16)
RL = 27 Ω (see Figure 11 and Figure 17)
RL = 27 Ω (see Figure 11 and Figure 17)
RL = 27 Ω (see Figure 11 and Figure 17)
Differential Output Transition Time (tTD
)
Propagation Delay, Low-to-High Level (tPLH
)
)
22
22
Propagation Delay, High-to-Low Level (tPHL
|tPLH – tPHL| Propagation Delay Skew1 (tPDS
)
DRIVER OUTPUT ENABLE/DISABLE TIMES (ADM3485/
ADM3491 ONLY)
Output Enable Time to Low Level (tPZL
Output Enable Time to High Level (tPZH
Output Disable Time from High Level (tPHZ
Output Disable Time from Low Level (tPLZ
Output Enable Time from Shutdown to Low Level (tPSL
)
45
90
ns
ns
ns
ns
ns
ns
RL = 110 Ω (see Figure 13 and Figure 19)
RL = 110 Ω (see Figure 12 and Figure 18)
RL = 110 Ω (see Figure 12 and Figure 18)
RL = 110 Ω (see Figure 13 and Figure 19)
RL = 110 Ω (see Figure 13 and Figure 19)
RL = 110 Ω (see Figure 12 and Figure 18)
)
45
90
)
40
80
)
40
80
)
650
650
900
900
Output Enable Time from Shutdown to High Level (tPSH
)
1 Measured on |tPLH (Y) − tPHL (Y)| and |tPLH (Z) − tPHL (Z)|.
TIMING SPECIFICATIONS—ADM3483/ADM3488
VCC = 3.3 V, TA = 25°C, unless otherwise noted.
Table 4.
Parameter
DRIVER
Min
Typ
Max
Unit
Test Conditions/Comments
Differential Output Delay (tDD
)
600
400
700
700
900
1400
1200
1500
1500
ns
ns
ns
ns
ns
RL = 60 Ω (see Figure 10 and Figure 16)
RL = 60 Ω (see Figure 10 and Figure 16)
RL = 27 Ω (see Figure 11 and Figure 17)
RL = 27 Ω (see Figure 11 and Figure 17)
RL = 27 Ω (see Figure 11 and Figure 17)
Differential Output Transition Time (tTD
)
700
Propagation Delay, Low-to-High Level (tPLH
)
)
1000
1000
100
Propagation Delay, High-to-Low Level (tPHL
|tPLH – tPHL| Propagation Delay Skew1 (tPDS
DRIVER OUTPUT ENABLE/DISABLE TIMES (ADM3483 ONLY)
Output Enable Time to Low Level (tPZL
Output Enable Time to High Level (tPZH
Output Disable Time from High Level (tPHZ
Output Disable Time from Low Level (tPLZ
Output Enable Time from Shutdown to Low Level (tPSL
)
)
900
600
50
1300
800
80
ns
ns
ns
ns
ꢀs
ꢀs
RL = 110 Ω (see Figure 13 and Figure 19)
RL = 110 Ω (see Figure 12 and Figure 18)
RL = 110 Ω (see Figure 12 and Figure 18)
RL = 110 Ω (see Figure 13 and Figure 19)
RL = 110 Ω (see Figure 13 and Figure 19)
RL = 110 Ω (see Figure 12 and Figure 18)
)
)
)
50
80
)
1.9
2.2
2.7
3.0
Output Enable Time from Shutdown to High Level (tPSH
)
1 Measured on |tPLH (Y) − tPHL (Y)| and |tPLH (Z) − tPHL (Z)|.
Rev. B | Page 5 of 20
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