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ISL3159E_15 Datasheet, PDF (8/16 Pages) Intersil Corporation – ±15kV ESD Protected, +125°C, 40Mbps, 5V,PROFIBUS™, Full Fail-safe, RS-485/RS-422 Transceiver
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ISL3159E
Test Circuits and Waveforms (Continued)
RE
+1.5V B
A
R RO
15pF
A
SIGNAL
GENERATOR
RO
1.5V
tPLH
1.7V
+3V
1.5V
0V
tPHL
1.7V
VCC
0V
FIGURE 7A. TEST CIRCUIT
FIGURE 7B. MEASUREMENT POINTS
FIGURE 7. RECEIVER PROPAGATION DELAY
SIGNAL
GENERATOR
RE
GND
B
A R RO
1kΩ
15pF
VCC
SW GND
PARAMETER
DE
tHZ
0
tLZ
0
tZH (Note 12)
0
tZL (Note 12)
0
tHZ(SHDN) (Note 15)
0
tLZ(SHDN) (Note 15)
0
A
+1.5V
-1.5V
+1.5V
-1.5V
+1.5V
-1.5V
SW
GND
VCC
GND
VCC
GND
VCC
(Note 13)
RE
tZH, tZH(SHDN)
(Note 13)
RO
tZL, tZL(SHDN)
(Note 13)
RO
1.5V
3V
1.5V
0V
tHZ
OUTPUT HIGH
1.5V
VOH - 0.5V VOH
0V
tLZ
1.5V
OUTPUT LOW
VCC
VOL + 0.5V VOL
FIGURE 8A. TEST CIRCUIT
FIGURE 8B. MEASUREMENT POINTS
FIGURE 8. RECEIVER ENABLE AND DISABLE TIMES
Typical Performance Curves VCC = 5V, TA = +25°C; unless otherwise specified
110
+25°C
100
+85°C
90
80
70 +125°C
60
50
40
30
20
10
RD = 20Ω
RD = 30Ω
RD = 54Ω
RD = 100Ω
3.5
3.4
3.3
RD = 100Ω
3.2
3.1
3.0
2.9
2.8
2.7
RD = 54Ω
2.6
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
DIFFERENTIAL OUTPUT VOLTAGE (V)
2.5
-40
-15
10
35
60
85
TEMPERATURE (°C)
110 125
FIGURE 9. DRIVER OUTPUT CURRENT vs DIFFERENTIAL OUTPUT
VOLTAGE
FIGURE 10. DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs
TEMPERATURE
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8
FN6364.2
August 25, 2015
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