The half-duplex device is put into shutdown mode by driving RE high and DE low. If these inputs are in this state for less than 50 ns, the device is guaranteed not to
enter shutdown mode. If the enable inputs are in this state for at least 3000 ns, the device is guaranteed to enter shutdown mode.
ADM4851/ADM4855 TIMING SPECIFICATIONS
V
CC
= 5 V ± 5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Table 4.
Parameter
DRIVER
Maximum Data Rate
Propagation Delay, t
PLH
, t
PHL
Skew, t
SKEW
Rise/Fall Times, t
R
, t
F
Enable Time, t
ZH
Disable Time, t
ZL
Enable Time from Shutdown
RECEIVER
Propagation Delay, t
PLH
, t
PHL
Differential Skew, t
SKEW
Enable Time
Disable Time
Enable Time from Shutdown
Time to Shutdown
1
Min
500
250
200
Typ
Max
Unit
kbps
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Test Conditions/Comments
600
40
600
1000
1000
4000
R
LDIFF
= 54 Ω, C
L1
= C
L2
= 100 pF, see Figure 20
R
LDIFF
= 54 Ω, C
L1
= C
L2
= 100 pF, see Figure 20
R
LDIFF
= 54 Ω, C
L1
= C
L2
= 100 pF, see Figure 20
R
L
= 500 Ω, C
L
= 100 pF, see Figure 21, ADM4851
R
L
= 500 Ω, C
L
= 15 pF, see Figure 21, ADM4851
R
L
= 500 Ω, C
L
= 100 pF, see Figure 21, ADM4851
C
L
= 15 pF, see Figure 22
C
L
= 15 pF, see Figure 22
R
L
= 1 kΩ, C
L
= 15 pF, see Figure 23, ADM4851
R
L
= 1 kΩ, C
L
= 15 pF, see Figure 23, ADM4851
R
L
= 1 kΩ, C
L
= 15 pF, see Figure 23, ADM4851
ADM4851
1
400
5
20
4000
330
1000
250
50
50
3000
50
The half-duplex device is put into shutdown mode by driving RE high and DE low. If these inputs are in this state for less than 50 ns, the device is guaranteed not to
enter shutdown mode. If the enable inputs are in this state for at least 3000 ns, the device is guaranteed to enter shutdown mode.
The half-duplex device is put into shutdown mode by driving RE high and DE low. If these inputs are in this state for less than 50 ns, the device is guaranteed not to
enter shutdown mode. If the enable inputs are in this state for at least 3000 ns, the device is guaranteed to enter shutdown mode.
ADM4853/ADM4857 TIMING SPECIFICATIONS
V
CC
= 5 V ± 5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Table 6.
Parameter
DRIVER
Maximum Data Rate
Propagation Delay, t
PLH
, t
PHL
Skew, t
SKEW
Rise/Fall Times, t
R
, t
F
Enable Time, t
ZH
Disable Time, t
ZL
Enable Time from Shutdown
RECEIVER
Propagation Delay, t
PLH
, t
PHL
Differential Skew, t
SKEW
Enable Time
Disable Time
Enable Time from Shutdown
Time to Shutdown
1
Min
10
0
Typ
Max
Unit
Mbps
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Test Conditions/Comments
30
10
30
35
35
4000
R
LDIFF
= 54 Ω, C
L1
= C
L2
= 100 pF, see Figure 20
R
LDIFF
= 54 Ω, C
L1
= C
L2
= 100 pF, see Figure 20
R
LDIFF
= 54 Ω, C
L1
= C
L2
= 100 pF, see Figure 20
R
L
= 500 Ω, C
L
= 100 pF, see Figure 21, ADM4853
R
L
= 500 Ω, C
L
= 15 pF, see Figure 21, ADM4853
R
L
= 500 Ω, C
L
= 100 pF, see Figure 21, ADM4853
C
L
= 15 pF, see Figure 22
C
L
= 15 pF, see Figure 22
R
L
= 1 kΩ, C
L
= 15 pF, see Figure 23, ADM4853
R
L
= 1 kΩ, C
L
= 15 pF, see Figure 23, ADM4853
R
L
= 1 kΩ, C
L
= 15 pF, see Figure 23, ADM4853
ADM4853
1
55
5
20
4000
330
190
30
50
50
3000
50
The half-duplex device is put into shutdown mode by driving RE high and DE low. If these inputs are in this state for less than 50 ns, the device is guaranteed not to
enter shutdown mode. If the enable inputs are in this state for at least 3000 ns, the device is guaranteed to enter shutdown mode.
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DSP and ARM Processors
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