SP3070-3078E_08 Datasheet, PDF (8/19 Pages) Sipex Corporation – ±15kV ESD-Protected, 3.3V, 1/8 Load, Failsafe

FIGURE 1. DRIVER DC TEST CIRCUIT
FIGURE 2. RECEIVER DC TEST CIRCUIT
DI
D
0 or 3V
VCC
R/2
VOD
R/2 _VOC
A
OUT
VID _B
R
RE
FIGURE 3. DRIVER PROPAGATION DELAY TIME TEST CIRCUIT AND TIMING
DIAGRAM
Y
DI _D
VOD
Z
3.3V
RL CL
54Ω 50pF
V_CC
DI ₀
Z
Y
V_O
V_DIFF
-V_O
V_CC/2
t_PLH
t_PHL
V_O
1/2 V_O
10%
t_R
V_DIFF = V(Y) - V(Z)
90%
90%
V_SKEW = t_{PLH -} t_PHL
1/2 V_O
10%
t_F
Date: 03/31/05
SP3070E - SP3078E Family, ± 15kV ESD-Protected, Failsafe RS-485/RS422 Transceivers
8
© Copyright 2005 Sipex Corporation