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ISL3150E_08 Datasheet, PDF (10/20 Pages) Intersil Corporation – ±16.5kV ESD (IEC61000-4-2) Protected, Large Output Swing, 5V, Full Fail-Safe, 1/8 Unit Load, RS-485/RS-422 Transceivers
ISL3150E, ISL3152E, ISL3153E, ISL3155E, ISL3156E, ISL3158E
Test Circuits and Waveforms (Continued)
DE
VCC
DI
SIGNAL
GENERATOR
Z
D
Y
60Ω
CD
+
VOD
-
DI
DIFF OUT (Y - Z)
-VOD
3V
0V
+VOD
0V
FIGURE 4A. TEST CIRCUIT
FIGURE 4B. MEASUREMENT POINTS
FIGURE 4. DRIVER DATA RATE
RE
0V B
A
RO
R
15pF
SIGNAL
GENERATOR
A
0V
+1.5V
0V
-1.5V
tPLH
tPHL
VCC
RO
1.5V
1.5V
0V
FIGURE 5A. TEST CIRCUIT
FIGURE 5B. MEASUREMENT POINTS
FIGURE 5. RECEIVER PROPAGATION DELAY AND DATA RATE
SIGNAL
GENERATOR
RE
GND
B
RO
AR
1kΩ
15pF
VCC
SW GND
PARAMETER
DE
tHZ
0
tLZ
0
tZH (Note 6)
0
tZL (Note 6)
0
tZH(SHDN) (Note 9)
0
tZL(SHDN) (Note 9)
0
A
+1.5V
-1.5V
+1.5V
-1.5V
+1.5V
-1.5V
SW
GND
VCC
GND
VCC
GND
VCC
NOTE 7
RE
tZH, tZH(SHDN)
NOTE 7
RO
tZL, tZL(SHDN)
NOTE 7
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 6A. TEST CIRCUIT
FIGURE 6B. MEASUREMENT POINTS
FIGURE 6. RECEIVER ENABLE AND DISABLE TIMES
10
FN6363.1
January 18, 2008