ISL3152EIUZ-T Datasheet, PDF (10/22 Pages) Intersil Corporation – ±16.5kV ESD, 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)
DI
1.5V
3V
1.5V
0V
DE
V_CC
DI
SIGNAL
GENERATOR
Z
D
Y
C_L = 100pF
R_DIFF
C_L = 100pF
OUT (Z)
OUT (Y)
t_PLH
t_PHL
V_OH
V_OL
90%
DIFF OUT (Y - Z)
10%
t_R
90%
10%
t_F
SKEW = |t_PLH - t_PHL|
+V_OD
-V_OD
FIGURE 2A. TEST CIRCUIT
FIGURE 2B. MEASUREMENT POINTS
FIGURE 2. DRIVER PROPAGATION DELAY AND DIFFERENTIAL TRANSITION TIMES
DE
DI
Z
D
SIGNAL
Y
GENERATOR
500Ω
SW
C_L
V_CC
GND
DE
1.5V
NOTE 10
3V
1.5V
0V
PARAMETER OUTPUT
RE
t_HZ
Y/Z
X
C_L
DI SW (pF)
1/0 GND 15
t_ZH, t_ZH(SHDN)
NOTE 10
OUT (Y, Z)
t_HZ
OUTPUT HIGH
2.3V
V_OH - 0.5V ^VOH
0V
t_LZ
Y/Z
X
0/1 V_CC 15
t_ZH
Y/Z 0 (Note 9) 1/0 GND 100
t_ZL
Y/Z 0 (Note 9) 0/1 V_CC 100
t_ZH(SHDN)
Y/Z 1 (Note 12) 1/0 GND 100
t_ZL(SHDN)
Y/Z 1 (Note 12) 0/1 V_CC 100
FIGURE 3A. TEST CIRCUIT
t_ZL, t_ZL(SHDN)
NOTE 10
OUT (Y, Z)
t_LZ
2.3V
OUTPUT LOW
V_CC
V_OL + 0.5V _VOL
FIGURE 3B. MEASUREMENT POINTS
FIGURE 3. DRIVER ENABLE AND DISABLE TIMES
DE
V_CC
DI
SIGNAL
GENERATOR
Z
D
Y
60Ω
C_D
+
V_OD
-
DI
DIFF OUT (Y - Z)
-V_OD
3V
0V
+V_{OD 0V}
FIGURE 4A. TEST CIRCUIT
FIGURE 4B. MEASUREMENT POINTS
FIGURE 4. DRIVER DATA RATE
10
FN6363.2
July 30, 2009