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MAX13413EESA Datasheet, PDF (12/24 Pages) Maxim Integrated Products – RS-485 Transceiver with Integrated Low-Dropout Regulator and AutoDirection Control
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RS-485 Transceiver with Integrated Low-Dropout
Regulator and AutoDirection Control
Test Circuits and Waveforms (continued)
5V
DI
0
B
VO
A
1/2 VO
RE = VCC f = 1MHz, tLH ≤ 3ns, tHL ≤ 3ns
1.5V
1.5V
tDPLH
tDPHL
RO
tDDD, tRED
O
VO
VDIFF 0
-VO
(RO PULLED LOW)
90%
10%
VDIFF = VA - VB
tLH
tHL
Figure 3b. Driver Propagation Delays
1/2 VO
90%
10%
OUTPUT
UNDER TEST
500Ω
CL
VCC
DE
0
A, B
S1
5V
VOL
S2
A, B
0
Figure 4. Driver Enable and Disable Times
1.5V
1.5V
tDZL(SHDN)
2.3V
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
2.3V
tDZH(SHDN)
tDLZ
VOL + 0.5V
VOH
VOH + 0.5V
tDHZ
ATE
VID
B
R
A
RECEIVER
OUTPUT
Figure 5. Receiver-Propagation-Delay Test Circuit
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