T
MIN
to T
MAX
and V
CC
= 5V ± 5% unless otherwise noted.
SPEcificationS
(continued)
SP1490E/1491E rEcEivEr
dc characteristics
Differential Input Threshold
Input Hysteresis
Output Voltage High
Output Voltage Low
Input Resistance
Input Current (A, B); V
IN
= 12V
Input Current (A, B); V
IN
= -7V
Short-Circuit Current
0.2
3.5
12
70
15
+0.2
0.4
±1.0
-0.8
85
Volts
mV
Volts
Volts
kΩ
mA
mA
mA
-7V ≤ V
CM
≤ 12V
V
CM
= 0V
I
O
= -4mA, V
ID
= +200mV
I
O
= +4mA, V
ID
= -200mV
-7V ≤ V
CM
≤ 12V (1 unit load)
V
IN
= 12V
V
IN
= -7V
0V ≤ V
O
≤ V
CC
ParaMEtErS
SP1490E/1491E rEcEivEr
ac characteristics
Maximum Data Rate
Receiver Input to Output
Receiver Input to Output
Diff. Receiver Skew It
PLH
-t
PHL
I
Receiver Tplh/Tphl
PoWEr rEQuirEMEntS
Supply Voltage
Supply Current
EnvironMEntaL and
MEchanicaL
Operating Temperature
Commercial (_C_)
Industrial (_E_)
Storage Temperature
Min.
tYP.
MaX.
unitS
conditionS
20
20
20
45
45
5
40
50
50
10
70
+5.25
Mbps
ns
ns
ns
ns
Volts
μA
t
PLH
; R
DIFF
= 54Ω,
C
L1
= C
L2
=
100pF;
Figures 3 & 8
t
PHL
; R
DIFF
= 54Ω,
C
L1
= C
L2
=
100pF;
Figures 3 & 8
R
DIFF
= 54Ω; C
L1
= C
L2
= 100pF;
+4.75
900
0
-40
-65
+70
+85
+150
°C
°C
°C
A
R
V
OD
R
B
V
OC
Receiver
Output
C
RL
Test Point
S
1
1K
S
2
1K
V
CC
Figure 1. Driver DC Test Load Circuit
3V
DE
DI
A
B
R
DIFF
C
L2
C
L1
Figure 2. Receiver Timing Test Load Circuit
A
B
RO
15pF
Output
Under
Test
500
C
L
S
1
V
CC
S
2
Figure 3. Driver/Receiver Timing Test Circuit
Figure 4. Driver Timing Test Load #2 Circuit
SP1490_SP1491E_100_061209
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
3
EXAR [ EXAR CORPORATION ]
