SI8440 SILABS [Silicon Laboratories], SI8440 Datasheet - Page 5

• Manufacturer Part Number: SI8440
• Description: QUAD-CHANNEL DIGITAL ISOLATOR
• Manufacturer: SILABS [Silicon Laboratories]

Table 1. Electrical Characteristics (Continued)
(V
Parameter
Maximum Data Rate
Minimum Pulse Width
Propagation Delay
Pulse Width Distortion
|t
Propagation Delay Skew
Channel-Channel Skew
Output Rise Time
Output Fall Time
Common Mode Transient
Immunity at Logic Low Output
Common Mode Transient
Immunity at Logic High Output
Enable to Data Valid
Enable to Data Tri-State
Start-up Time
Notes:
OUTPUTS
PLH
ENABLE
DD1
1. t
2. t
3. Codirectional channel-to-channel matching is the absolute value of the difference in propagation delays between any
4. CM
5. Start-up time is the time period from the application of power to valid data at the output.
= 5 V, V
- t
Figure 1. ENABLE Timing Diagram
edge of the V
50% level of the rising edge of the V
temperature, supply voltages, and output load within the recommended operating conditions.
two channels with inputs on the same side of the isolation barrier. Opposing-directional channel-to-channel matching is
the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of
the isolation barrier.
the maximum common-mode voltage slew rate that can be sustained while maintaining V
voltage slew rates apply to both rising and falling common-mode voltage edges. The transient magnitude is the range
over which the common mode is slewed.
PHL
PSK
PHL
H
|
propagation delay is measured from the 50% level of the falling edge of the V
is the magnitude of the worst-case difference in t
1
is the maximum common-mode voltage slew rate that can be sustained while maintaining V
DD2
5
t
= 5 V, T
en1
1
Ox
signal. t
A
3
= –40 to 125 C°)
2
PLH
4
4
propagation delay is measured from the 50% level of the rising edge of the V
t
t
PSKCD/OD
Symbol
PHL
PWD
CM
CM
t
t
t
t
PSK
en1
en2
SU
, t
Ox
H
PLH
L
signal.
t
en2
Timing Characteristics
Test Condition
C1 = 15 pF
C1 = 15 pF
Rev. 0.3
PHL
OUTPUT
or t
INPUT
(V
(V
PLH
OX
IX
)
)
Figure 2. Propagation Delay Timing
that is measured between units at the same operating
Min
25
25
—
—
—
—
—
—
—
—
—
—
0
t
PLH
Ix
signal to the 50% level of the falling
O
< 0.8 V. The common-mode
Typ
7.5
0.5
30
30
—
Si8440/1/2
5
1
6
2
2
5
5
3
O
> 0.8 V
t
PHL
Max
100
—
—
—
—
—
—
—
—
—
—
—
—
Ix
DD2
signal to the
50%
. CM
50%
kV/µs
kV/µs
Mbps
Unit
L
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
is
5