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ISO7821LLDW Datasheet(PDF) 11 Page - Texas Instruments

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Part # ISO7821LLDW
Description  High-Performance, 8000-VPK Reinforced Isolated Dual-LVDS Buffer
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

ISO7821LLDW Datasheet(HTML) 11 Page - Texas Instruments

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11
ISO7820LL, ISO7821LL
www.ti.com
SLLSET8A – MARCH 2016 – REVISED AUGUST 2016
Product Folder Links: ISO7820LL ISO7821LL
Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
(1)
UI is the unit interval.
6.11 Switching Characteristics
(over recommended operating conditions unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
LVDS CHANNEL
tPLH
tPHL
Propagation delay time
17
25
ns
PWD
Pulse width distortion |tPHL – tPLH|
0
4.5
ns
tsk(o)
Channel-to-channel output skew time
Same directional channels, same
voltage and temperature
2.5
ns
tsk(pp)
Part-part skew
Same directional channels, same
voltage and temperature
4.5
ns
tCMset
Common-mode settling time after
EN = 0 to EN = 1 transition.
Common-mode capacitive
load = 100 pF to 0.5 nF
20
µs
tfs
Default output delay time from input
power loss
Measured from the time VCC goes
below 1.7 V, see Figure 24
0.2
9
µs
tie
Time interval error, or peak-to-peak jitter
216 – 1 PRBS data at 100 Mbps;
RX VID = 350 mVPP, 1 ns trf 10% to
90%, TA = 25°C, VCC1, VCC2 = 3.3 V
1
ns
LVDS TX AND RX
trf
TX differential rise/fall times (20% to
80%)
See Figure 22
300
780
1380
ps
∆VOC(pp)
TX common-mode voltage peak-to-peak
at 100 Mbps
0
150
mVPP
tPLZ, tPHZ TX disable time—valid output to HiZ
See Figure 23
10
20
ns
tPZH
Enable propagation delay, high
impedance-to-high output
See Figure 23
10
20
ns
tPZL
Enable propagation delay, high
impedance-to-low output
See Figure 23
2
2.5
μs
|VID|
Magnitude of RX input differential voltage
for valid operation
Driven with voltage sources on RX
pins, see the figures in the Parameter
Measurement Information section
100
600
mV
trf(RX)
Allowed RX input differential rise and fall
times (20% to 80%)
See Figure 27
1
0.3 × UI(1)
ns


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