ADM3483 Просмотр технического описания (PDF) - Analog Devices
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ADM3483 Datasheet PDF : 20 Pages
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Data Sheet
ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
TIMING SPECIFICATIONS—ADM3485/ADM3490/ADM3491
VCC = 3.3 V, TA = 25°C, unless otherwise noted.
Table 3.
Parameter
Min Typ Max
DRIVER
Differential Output Delay (tDD)
1
22
35
Differential Output Transition Time (tTD)
3
8
25
Propagation Delay, Low-to-High Level (tPLH)
7
22
35
Propagation Delay, High-to-Low Level (tPHL)
7
22
35
|tPLH – tPHL| Propagation Delay Skew1 (tPDS)
8
DRIVER OUTPUT ENABLE/DISABLE TIMES (ADM3485/
ADM3491 ONLY)
Output Enable Time to Low Level (tPZL)
45
90
Output Enable Time to High Level (tPZH)
45
90
Output Disable Time from High Level (tPHZ)
40
80
Output Disable Time from Low Level (tPLZ)
40
80
Output Enable Time from Shutdown to Low Level (tPSL)
650 900
Output Enable Time from Shutdown to High Level (tPSH)
650 900
1 Measured on |tPLH (Y) − tPHL (Y)| and |tPLH (Z) − tPHL (Z)|.
Unit Test Conditions/Comments
ns
RL = 60 Ω (see Figure 20 and Figure 26)
ns
RL = 60 Ω (see Figure 20 and Figure 26)
ns
RL = 27 Ω (see Figure 21 and Figure 27)
ns
RL = 27 Ω (see Figure 21 and Figure 27)
ns
RL = 27 Ω (see Figure 21 and Figure 27)
ns
RL = 110 Ω (see Figure 23 and Figure 29)
ns
RL = 110 Ω (see Figure 22 and Figure 28)
ns
RL = 110 Ω (see Figure 22 and Figure 28)
ns
RL = 110 Ω (see Figure 23 and Figure 29)
ns
RL = 110 Ω (see Figure 23 and Figure 29)
ns
RL = 110 Ω (see Figure 22 and Figure 28)
TIMING SPECIFICATIONS—ADM3483/ADM3488
VCC = 3.3 V, TA = 25°C, unless otherwise noted.
Table 4.
Parameter
Min
DRIVER
Differential Output Delay (tDD)
600
Differential Output Transition Time (tTD)
400
Propagation Delay, Low-to-High Level (tPLH)
700
Propagation Delay, High-to-Low Level (tPHL)
700
|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)
Output Enable Time from Shutdown to High Level (tPSH)
1 Measured on |tPLH (Y) − tPHL (Y)| and |tPLH (Z) − tPHL (Z)|.
Typ Max Unit Test Conditions/Comments
900 1400 ns
700 1200 ns
1000 1500 ns
1000 1500 ns
100
ns
RL = 60 Ω (see Figure 20 and Figure 26)
RL = 60 Ω (see Figure 20 and Figure 26)
RL = 27 Ω (see Figure 21 and Figure 27)
RL = 27 Ω (see Figure 21 and Figure 27)
RL = 27 Ω (see Figure 21 and Figure 27)
900 1300 ns
600 800 ns
50
80
ns
50
80
ns
1.9 2.7 μs
2.2 3.0 μs
RL = 110 Ω (see Figure 23 and Figure 29)
RL = 110 Ω (see Figure 22 and Figure 28)
RL = 110 Ω (see Figure 22 and Figure 28)
RL = 110 Ω (see Figure 23 and Figure 29)
RL = 110 Ω (see Figure 23 and Figure 29)
RL = 110 Ω (see Figure 22 and Figure 28)
Rev. E | Page 5 of 20
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