XR33032 Datasheet, PDF (10/19 Pages) Exar Corporation – WIDE SUPPLY 18V TOLERANT RS-485/RS-422 TRANSCEIVERS

XR33032/35/38
WIDE SUPPLY 18V TOLERANT RS-485/RS-422 TRANSCEIVERS
FIGURE 5. TRANSIENT OVER-VOLTAGE TEST CIRCUIT
Device powered on or powered off
A or Z
Transceiver,
100
Generator, or
Receiver
B or Y
REV. 1.0.0
V_TEST
15us duration
15 duty cycle
FIGURE 6. DRIVER PROPAGATION DELAY TEST CIRCUIT & TIMING DIAGRAM
DI
3V
0V
Z
V_OD
(V_Y - V_Z)
Y
V_OD+
0V
V_OD-
1.5V
t_DPLH
1.5V
V_OD
t_SKEW = |t_DPHL è t_DPLH|
t_DPHL
90%
10%
t_DR
90%
10%
t_DF
DI
D
Z
V_OD
R_L
C_L
DE = V_CC
Y
10