SP495 Datasheet, PDF (4/6 Pages) Sipex Corporation – Quad Differential RS-485 Transceiver

+3V
DI
0V
B
DRIVER
OUTPUT _A
DIFFERENTIAL V_O⁺
OUTPUT 0V
V_A – V_B ^VO^–
f = 1MHz; t_R < 10ns; t_F < 10ns
1.5V
1.5V
V_O ^1/2VO
t_PLH
t_PHL
t_SKEW
t_R
t_PLH
1/2V_O
t_SKEW
t_F
Figure 6. Driver Propagation Delays
+3V
DE
0V
5V
A, B
V_OL
V_OH
A, B
0V
f = 1MHz; t_R < 10ns; t_F < 10ns
1.5V
t_ZL
2.3V _{Output normally LOW}
2.3V ^{Output normally HIGH}
t_ZH
1.5V
t_LZ
0.5V
0.5V
t_HZ
Figure 7. Driver Enable and Disable Times
V_0D2⁺
A–B
V_0D2^–
V_OH
R
V_OL
t_PHL
f = 1MHz; t_R 10ns; t_F 10ns
0V
INPUT
1.5V
OUTPUT
t_PHL
Figure 8. Receiver Propagation Delays
0V
1.5V
SP495
Quad Differential RS-485 Transceiver
4
© Copyright 2000 Sipex Corporation