LTC1343 데이터 시트보기 (PDF) - Linear Technology
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LTC1343 Datasheet PDF : 28 Pages
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LTC1343
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V (Notes 2, 3)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
t PHL
Input to Output
(Figures 2, 7), CTRL = GND, 0°C ≤ TA ≤ 70°C q
CTRL = VCC, 0°C ≤ TA ≤ 70°C
(Figures 2, 7), CTRL = GND, –40°C ≤ TA ≤ 85°C q
CTRL = VCC, –40°C ≤ TA ≤ 85°C
∆t
Input to Output Difference, tPLH – tPHL (Figures 2, 7), 0°C ≤ TA ≤ 70°C
q
(Figures 2, 7), –40°C ≤ TA ≤ 85°C
q
V.35 Driver
VOD
Differential Output Voltage
Open Circuit
With Load, – 4.0V ≤ VCM = 4.0V (Figure 3)
q
IOH
Transmitter Output High Current
VA, B = 0V
q
IOL
Transmitter Output Low Current
VA, B = 0V
q
IOZ
Transmitter Output Leakage Current
– 0.25V ≤ VA, B ≤ 0.25V
q
tr, tf
Rise or Fall Time
(Figures 3, 6)
t PLH
Input to Output
(Figures 3, 6), 0°C ≤ TA ≤ 70°C
q
(Figures 3, 6), –40°C ≤ TA ≤ 85°C
q
t PHL
Input to Output
(Figures 3, 6), 0°C ≤ TA ≤ 70°C
q
(Figures 3, 6), –40°C ≤ TA ≤ 85°C
q
∆t
Input to Output Difference, tPLH – tPHL (Figures 3, 6), 0°C ≤ TA ≤ 70°C
q
(Figures 3, 6), –40°C ≤ TA ≤ 85°C
q
t SKEW
Output to Output Skew
(Figures 3, 6)
V.35 Receiver
VTH
Differential Receiver Input
Threshold Voltage
– 2V ≤ (VA + VB)/2 ≤ 2V (Figure 3)
q
∆VTH
Receiver Input Hysteresis
– 2V ≤ (VA + VB)/2 ≤ 2V (Figure 3)
q
IIN
Receiver Input Current (A, B)
– 10V ≤ VA, B ≤ 10V
q
RIN
Receiver Input Impedance
– 10V ≤ VA, B ≤ 10V
q
tr, tf
Rise or Fall Time
(Figures 3, 7)
tPLH
Input to Output
(Figures 3, 7), 0°C ≤ TA ≤ 70°C
q
(Figures 3, 7), –40°C ≤ TA ≤ 85°C
q
tPHL
Input to Output
(Figures 3, 7), 0°C ≤ TA ≤ 70°C
q
(Figures 3, 7), –40°C ≤ TA ≤ 85°C
q
∆t
Input to Output Difference, tPLH – tPHL (Figures 3, 7), 0°C ≤ TA ≤ 70°C
q
(Figures 3, 7), –40°C ≤ TA ≤ 85°C
q
V.10 Driver
VO
Output Voltage
Open Circuit, RL = 3.9k
RL = 450Ω (Figure 4)
VO at 450Ω > 0.9 VO at RL = 3.9k
Driver 1 Only
ISS
Short-Circuit Current
IOZ
Output Leakage Current
VO = GND; EIA-530, X.21, EIA-530-A Modes
– 0.25V ≤ VO ≤ 0.25V, Power Off or
q
No-Cable Mode or Driver Disabled
tr, tf
Rise or Fall Time
t PLH
Input to Output
t PHL
Input to Output
(Figures 4, 8), RL = 450Ω, CL = 100pF
R423SET = 100k
(Figures 4, 8), RL = 450Ω, CL = 100pF
R423SET = 100k
(Figures 4, 8), RL = 450Ω, CL = 100pF
R423SET = 100k
35
25
0
0
± 0.44
– 12.6
9.4
25
25
25
25
0
0
– 0.2
20
±4.0
±3.6
80
400
80
400
5
5
± 0.55
– 11
11
± 0.01
5
45
45
45
45
5
5
4
11
32
15
80
80
100
100
4
4
±0.1
4
8
8
115
130
17
25
6.0
± 0.66
– 9.4
12.6
±100
75
90
75
90
17
25
0.2
40
± 0.50
115
130
115
130
17
25
±6.0
±150
±100
UNITS
ns
ns
ns
ns
ns
ns
V
V
mA
mA
µA
ns
ns
ns
ns
ns
ns
ns
ns
V
mV
mA
kΩ
ns
ns
ns
ns
ns
ns
ns
V
V
mA
µA
µs
µs
µs
4
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