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MAX13430E_10 Datasheet, PDF (8/20 Pages) Maxim Integrated Products – RS-485 Transceivers with Low-Voltage Logic Interface
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RS-485 Transceivers with Low-Voltage
Logic Interface
Test Circuits and Waveforms
Y
VOD
Z
RL/2
RL/2
VOC
VL
DE
Y
DI D
VOD
Z
RL
CL
Figure 1. Driver DC Test Load
Figure 2. Driver Timing Test Circuit
VL
DI
VL/2
0
Z
Y
VO
VDIFF 0
-VO
VO
1/2 VO
10%
tR
tDPLH
tDPHL
VDIFF = V (Y) - V (Z)
90%
90%
tF
tSKEW = | tDPLH - tDPHL |
Figure 3. Driver Propagation Delays
1/2 VO
10%
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