XR3170E Datasheet, PDF (13/24 Pages) Exar Corporation – 3.3V High Speed RS-485/RS-422 TRANSCEIVERS WITH 1/8 UNIT LOAD

REV. 1.0.0
XR3170E-3178E
3.3V HIGH SPEED RS-485/RS-422 TRANSCEIVERS WITH 1/8^th UNIT LOAD
FIGURE 11. DRIVER ENABLE AND DISABLE TIMING DIAGRAM 2
DE
t_ZL, t_ZL(SHDN)
OUT
V_OL
V_OM = (V_OL + Vcc)/2
Vcc/2
t_LZ
Vcc
0
0.25V
FIGURE 12. RECEIVER PROPAGATION DELAY TEST CIRCUIT
A
VID
B
R
RE
OUT
C_L
15pF
FIGURE 13. RECEIVER PROPAGATION DELAY TIMING DIAGRAM
A
B
OUT
t_PHL
1.5V
+1V
-1V
t_PLH
V_OH
V_OL
13