MAX13485E Datasheet, PDF (8/16 Pages) Maxim Integrated Products – Half-Duplex RS-485/RS-422 Transceivers in uDFN

Half-Duplex RS-485/RS-422 Transceivers in µDFN
A
V_OD
C_L
R_{DIFF 2}
R_{DIFF 2}
V_OC
B
Figure 1. Driver DC Test Load
Test Circuits and Waveforms
5V
DE
A
DI
V_ID
R_DIFF
C_L
B
Figure 2. Driver Timing Test Circuit
V_CC
DI
0
B
A
V_O
V_O
V_DIFF 0
-V_O
1/2 V_O
10%
t_LH
Figure 3. Driver Propagation Delays
f = 1MHz, t_LH ≤ 3ns, t_HL ≤ 3ns
1.5V
1.5V
t_DPLH
t_DPHL
V_DIFF = V(A) - V(B)
90%
90%
t_HL
t_DSKEW = |t_DPLH - t_DPHL|
1/2 V_O
10%
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