MAX3076EASD-T Datasheet, PDF (11/24 Pages) Maxim Integrated Products – +3.3V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers

MAX3070E–MAX3079E
+3.3V, ±15kV ESD-Protected, Fail-Safe,
Hot-Swap, RS-485/RS-422 Transceivers
Test Circuits and Waveforms (continued)
B
RECEIVER
ATE
V_ID
OUTPUT
R
A
Figure 6. Receiver Propagation Delay Test Circuit
A
B
V_OH
V_OL ^1.5V
RO
t_RPLH
THE RISE TIME AND FALL TIME OF INPUTS A AND B < 4ns
Figure 7. Receiver Propagation Delays
+1V
-1V
t_RPHL
+1.5V
S3
-1.5V
V_ID R
1kΩ
C_L
15pF
S1
V_CC
S2
GENERATOR
50Ω
RE
RO
RE
S1 OPEN
S2 CLOSED
S3 = +1.5V
S1 OPEN
S2 CLOSED
S3 = +1.5V
1.5V
t_RHZ
3V
0
t_RZH, t_RZH(SHDN)
V_OH
V_OH / 2
0
3V
0
V_OH
0.25V
RO
0
Figure 8. Receiver Enable and Disable Times
S1 CLOSED
S2 OPEN
S3 = -1.5V
3V
1.5V
RE
0
t_RZL, t_RZL(SHDN)
V_CC
(V_OL + V_CC) / 2
RO
V_OL
S1 CLOSED
S2 OPEN
S3 = -1.5V
3V
1.5V
RE
0
t_RLZ
V_CC
RO
0.25V
V_OL
Maxim Integrated
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