Datasheet

4
LTC1343
ELECTRICAL CHARACTERISTICS
The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 5V (Notes 2, 3)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
t
PHL
Input to Output (Figures 2, 7), CTRL = GND, 0°C ≤ T
A
≤ 70°C ● 35 80 115 ns
CTRL = V
CC
, 0°C ≤ T
A
≤ 70°C 400 ns
(Figures 2, 7), CTRL = GND, –40°C ≤ T
A
≤ 85°C ● 25 80 130 ns
CTRL = V
CC
, –40°C ≤ T
A
≤ 85°C 400 ns
∆t Input to Output Difference, t
PLH
– t
PHL
 (Figures 2, 7), 0°C ≤ T
A
≤ 70°C ● 0517 ns
(Figures 2, 7), –40°C ≤ T
A
≤ 85°C ● 0525 ns
V.35 Driver
V
OD
Differential Output Voltage Open Circuit 6.0 V
With Load, –4.0V ≤ V
CM
= 4.0V (Figure 3) ● ±0.44 ±0.55 ±0.66 V
I
OH
Transmitter Output High Current V
A, B
= 0V ● –12.6 –11 –9.4 mA
I
OL
Transmitter Output Low Current V
A, B
= 0V ● 9.4 11 12.6 mA
I
OZ
Transmitter Output Leakage Current –0.25V ≤ V
A, B
≤ 0.25V ● ±0.01 ±100 µA
t
r
, t
f
Rise or Fall Time (Figures 3, 6) 5 ns
t
PLH
Input to Output (Figures 3, 6), 0°C ≤ T
A
≤ 70°C ● 25 45 75 ns
(Figures 3, 6), –40°C ≤ T
A
≤ 85°C ● 25 45 90 ns
t
PHL
Input to Output (Figures 3, 6), 0°C ≤ T
A
≤ 70°C ● 25 45 75 ns
(Figures 3, 6), –40°C ≤ T
A
≤ 85°C ● 25 45 90 ns
∆t Input to Output Difference, t
PLH
– t
PHL
 (Figures 3, 6), 0°C ≤ T
A
≤ 70°C ● 0517 ns
(Figures 3, 6), –40°C ≤ T
A
≤ 85°C ● 0525 ns
t
SKEW
Output to Output Skew (Figures 3, 6) 4 ns
V.35 Receiver
V
TH
Differential Receiver Input –2V ≤ (V
A
+ V
B
)/2 ≤ 2V (Figure 3) ● –0.2 0.2 V
Threshold Voltage
∆V
TH
Receiver Input Hysteresis –2V ≤ (V
A
+ V
B
)/2 ≤ 2V (Figure 3) ● 11 40 mV
I
IN
Receiver Input Current (A, B) –10V ≤ V
A, B
≤ 10V ● ±0.50 mA
R
IN
Receiver Input Impedance –10V ≤ V
A, B
≤ 10V ● 20 32 kΩ
t
r
, t
f
Rise or Fall Time (Figures 3, 7) 15 ns
t
PLH
Input to Output (Figures 3, 7), 0°C ≤ T
A
≤ 70°C ● 80 115 ns
(Figures 3, 7), –40°C ≤ T
A
≤ 85°C ● 80 130 ns
t
PHL
Input to Output (Figures 3, 7), 0°C ≤ T
A
≤ 70°C ● 100 115 ns
(Figures 3, 7), –40°C ≤ T
A
≤ 85°C ● 100 130 ns
∆t Input to Output Difference, t
PLH
– t
PHL
 (Figures 3, 7), 0°C ≤ T
A
≤ 70°C ● 417 ns
(Figures 3, 7), –40°C ≤ T
A
≤ 85°C ● 425 ns
V.10 Driver
V
O
Output Voltage Open Circuit, R
L
= 3.9k ±4.0 ±6.0 V
R
L
= 450Ω (Figure 4) ±3.6 V
V
O
at 450Ω > 0.9 V
O
at R
L
= 3.9k
Driver 1 Only
I
SS
Short-Circuit Current V
O
= GND; EIA-530, X.21, EIA-530-A Modes ±150 mA
I
OZ
Output Leakage Current –0.25V ≤ V
O
≤ 0.25V, Power Off or ● ±0.1 ±100 µA
No-Cable Mode or Driver Disabled
t
r
, t
f
Rise or Fall Time (Figures 4, 8), R
L
= 450Ω, C
L
= 100pF
R
423SET
= 100k 4 µs
t
PLH
Input to Output (Figures 4, 8), R
L
= 450Ω, C
L
= 100pF
R
423SET
= 100k 8 µs
t
PHL
Input to Output (Figures 4, 8), R
L
= 450Ω, C
L
= 100pF
R
423SET
= 100k 8 µs