Rainbow Electronics MAX13175E - Manual (Page 21)

MAX13171E/MAX13173E/MAX13175E
Multiprotocol, Pin-Selectable
Data Interface Chipset
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Timing Diagrams (continued)
0
t PHL
0V
V 0H
-V 0L
TIN_
A
-3V
3V
t F
SR F = 6/t F SR R = 6/t R
0
t PLH
3V
-3V
t R
t
R
, t
F
≤ 10ns V L /2 V L /2
V L
Figure 10. V.28 Transmitter Propagation Delay
V
IH
V
IL
(2.0V)
(0.8V)
V
0H
V 0L
A
R
1.3V
t PHL
1.3V
t PLH
t R , t F ≤ 10ns
V L /2 V L /2
90%
10%
t
F
90%
10%
t R
Figure 11. V.28 Receiver Propagation Delay
V CM = ±7V OR ±2V
V DM = ±2V
R DM =
V
DM
R2 = 52Ω
R3 = 127Ω
R1 = 52Ω
S1 ON
A
I
I
B
S2 OFF
AMMETER
Figure 12. V.11 or V.35 Differential Impedance Measurement
V CM = ±2V
R2 = 52Ω
R3 = 127Ω
R1 = 52Ω
S1 ON
A
B
S2 ON
AMMETER
R CM =
V CM
I
I
Figure 13. V.35 Common-Mode Impedance Measurement