
16
FN6824.1
March 13, 2013
FIGURE 27. DRIVER WAVEFORMS, LOW TO HIGH
(ISL32172E, ISL32174E, ISL32179E)
FIGURE 28. DRIVER WAVEFORMS, HIGH TO LOW
(ISL32172E, ISL32174E, ISL32179E)
FIGURE 29. DRIVER WAVEFORMS, LOW TO HIGH
(ISL32172E, ISL32174E, ISL32179E)
FIGURE 30. DRIVER WAVEFORMS, HIGH TO LOW
(ISL32172E, ISL32174E, ISL32179E)
FIGURE 31. WORST CASE (NEGATIVE) FIVE PULSE DRIVER
WAVEFORMS DRIVING 200 FEET (62m) OF CAT5
CABLE (SINGLE TERMINATED WITH 121
Ω)
(ISL32172E, ISL32174E, ISL32179E)
FIGURE 32. WORST CASE (NEGATIVE) FIVE PULSE DRIVER
WAVEFORMS DRIVING 328 FEET (100m) OF
CAT5 CABLE (SINGLE TERMINATED WITH 121
Ω)
(ISL32172E, ISL32174E, ISL32179E)
Typical Performance Curves VCC = VL = 3.3V or 5V, TA = +25°C; Unless Otherwise Specified. VL notes apply to the ISL32179E
only.
(Continued)
TIME (10ns/DIV)
DRIV
E
R
OUT
P
UT
(V
)
RDIFF = 100Ω, CD = 50pF
1.5
3.0
DRIV
E
R
OUTPUT
(V
)
0
VH
DR
IV
ER
INP
U
T
(V
)
DI
Z
Y
0
-3
-2
-1
0
1
2
3
Y - Z
VCC = 3.3V, VL = 1.6V TO VCC
VH = VCC OR VL
TIME (10ns/DIV)
DRIV
E
R
OUTPUT
(V
)
1.5
3.0
DRIVER
OUTPUT
(V)
0
VH
DRIV
E
R
INPUT
(V)
DI
Y
Z
0
-3
-2
-1
0
1
2
3
Y - Z
RDIFF = 100Ω, CD = 50pF
VCC = 3.3V, VL = 1.6V TO VCC
VH = VCC OR VL
TIME (10ns/DIV)
DRIV
E
R
OUTPUT
(V
)
RDIFF = 100Ω, CD = 50pF
2.5
5.0
DRIVER
OUTPUT
(V
)
0
VH
DRIV
E
R
INPUT
(V)
DI
Z
Y
0
-5
-4
-2
0
2
4
5
Y - Z
VCC = 5V, VL = 1.6V TO VCC
VH = VCC OR VL
TIME (10ns/DIV)
D
R
IV
ER
O
U
TP
UT
(
V
)
2.5
5.0
DR
IV
ER
OUT
P
UT
(V
)
0
VH
DRI
VER
IN
PUT
(V
)
DI
Y
Z
0
RDIFF = 100Ω, CD = 50pF
-5
-4
-2
0
2
4
5
Y - Z
VCC = 5V, VL = 1.6V TO VCC
VH = VCC OR VL
TIME (80ns/DIV)
DRIV
E
R
OUTPUT
(V
)
0
3
DRIVE
R
INPUT
(
V
)
DI
-3.0
-1.5
0
1.5
3.0
Y - Z
VCC = VL = 3V
DRIVER + CABLE DELAY
(~288ns)
DRIV
E
R
OUT
P
UT
(V
)
-3.0
-1.5
0
1.5
3.0
Y - Z
+125°C
+85°C
32Mbps
TIME (80ns/DIV)
0
5
D
R
IV
ER
INP
U
T
(V
)
DI
VCC = VL = 4.5V
DRIV
E
R
OUTPUT
(V
)
-4.5
-1.5
0
1.5
4.5
Y - Z
-3.0
3.0
DRIVER + CABLE DELAY
(~472ns)
DRIVER
OUTPUT
(V)
-4.5
-1.5
0
1.5
4.5
Y - Z
-3.0
3.0
+125°C
+85°C
32Mbps
ISL32172E, ISL32272E, ISL32372E, ISL32174E, ISL32274E, ISL32374E, ISL32179E