SP3080E Datasheet, PDF (12/21 Pages) Sipex Corporation – Advanced-Failsafe RS-485/RS-422 Transceiver 1/8th Unit Load, Slew-Limited, ±15kV ESD-Protected

DESCRIPTION
DI D
VCC
R/2
VOD
R/2 VOC
Figure 1. Driver DC Test Circuit
A
VID _B R
RE
OUT
Figure 2. Receiver DC Test Circuit
Y
DI _D
VOD
Z
3.3V
RL _CL
54Ω _50pF
VCC
DI ₀
Z
Y
VO
VDIFF
-VO
VCC/2
tPLH
tPHL
VO
1/2 VO
10%
tR
VDIFF = V(Y) - V(Z)
90%
90%
VSKEW = tPLH - tPHL
1/2 VO
10%
tF
Figure 3. Driver Propagation Delay Time Test Circuit and Timing Diagram
Rev N 9/15/2006
SP3080E Advanced RS485 Transceivers
12
© Copyright 2006 Sipex Corporation