MXL1543
+5V Multiprotocol, 3Tx/3Rx, Software-
Selectable Clock/Data Transceivers
4 _______________________________________________________________________________________
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Output Leakage Current I
Z
-0.25V ≤ V
OUT
≤ +0.25V, power-off or no-
cable mode
±1 ±100 µA
Rise or Fall Time t
r
, t
f
(Figures 3, 6) 5 ns
Transmitter Input to Output
Delay
t
PHL
t
PLH
(Figures 3, 6) 35 80 ns
Data Skew |t
PHL
–t
PLH
| (Figures 3, 6) 4 16 ns
Output-to-Output Skew t
SKEW
(Figures 3, 6) 4 ns
V.35 RECEIVER
Differential Input Voltage V
TH
-2V ≤ V
CM
≤ 2V (Figure 3) -200 200 mV
Input Hysteresis ∆V
TH
-2V ≤ V
CM
≤ 2V (Figure 3) 15 40 mV
Receiver Input Current I
IN
-10V ≤ V
A
,
B
≤ 10V ±0.66 mA
Receiver Input Resistance R
IN
-10V ≤ V
A
,
B
≤ 10V 15 30 kΩ
Rise or Fall Time t
r
, t
f
(Figures 3, 7) 15 ns
Receiver Input to Output Delay t
PHL
, t
PLH
(Figures 3, 7) 50 80 ns
Data Skew |t
PHL
–t
PLH
| (Figures 3, 7) 4 16 ns
V.28 TRANSMITTER
Open circuit ±7
Output Voltage Swing (Figure 4) V
O
R
L
= 3kΩ±5 ±6
V
Short-Circuit Current I
SC
±150 mA
Output Leakage Current I
Z
-0.25V ≤ V
OUT
≤ +0.25V, power-off or no-
cable mode
±1 ±100 µA
Output Slew Rate SR R
L
= 3kΩ, C
L
= 2500pF (Figures 4, 8) 4 30 V/µs
Transmitter Input to Output
Delay
t
PHL
R
L
= 3kΩ, C
L
= 2500pF (Figures 4, 8) 1.5 2.5 µs
Transmitter Input to Output
Delay
t
PLH
R
L
= 3kΩ, C
L
= 2500pF (Figures 4, 8) 1.5 3 µs
V.28 RECEIVER
Input Threshold Low V
IL
0.8 1.2 V
Input Threshold High V
IH
1.2 2.0 V
Input Hysteresis V
HYST
0.05 0.3 V
Input Resistance R
IN
-15V ≤ V
IN
≤ +15V 3 5 7 kΩ
Rise or Fall Time t
r
, t
f
(Figures 5, 9) 15 ns
Receiver Input to Output Delay t
PHL
(Figures 5, 9) 60 100 ns
Receiver Input to Output Delay t
PLH
(Figures 5, 9) 160 250 ns
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5.0V, C1 = C2 = C4 = 1µF, C3 = C5 = 4.7µF, (Figure 10), T
A
= T
MIN
to T
MAX
. Typical values are at T
A
= +25°C, unless oth-
erwise noted.)
