1483 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
1483 Datasheet PDF : 8 Pages
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LTC1483
TYPICAL PERFORMANCE CHARACTERISTICS
Driver Differential Output Voltage
vs Temperature
2.5
2.4
RL = 54Ω
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
1483 G04
Driver Output Low Voltage
vs Output Current
70
TA = 25°C
60
50
40
30
20
10
0
0
1
2
3
4
OUTPUT VOLTAGE
1483 G05
Driver Output High Voltage
vs Output Current
0
–10 TA = 25°C
–20
–30
–40
–50
–60
–70
–80
–90
0
1
2
3
4
5
OUTPUT VOLTAGE (V)
1483 G06
PIN FUNCTIONS
RO (Pin 1): Receiver Output. If the receiver output is
enabled (RE low), then if A > B by 200mV, RO will be high.
If A < B by 200mV, then RO will be low.
RE (Pin 2): Receiver Output Enable. A low enables the
receiver output, RO. A high input forces the receiver
output into a high impedance state.
DE (Pin 3): Driver Outputs Enable. A high on DE enables
the driver output. A, B and the chip will function as a line
driver. A low input will force the driver outputs into a high
impedance state and the chip will function as a line
receiver. If RE is high and DE is low, the part will enter a low
power (1µA) shutdown state.
DI (Pin 4): Driver Input. If the driver outputs are enabled
(DE high) then a low on DI forces the outputs A low and B
high. A high on DI with the driver outputs enabled will force
A high and B low.
GND (Pin 5): Ground.
A (Pin 6): Driver Output/Receiver Input.
B (Pin 7): Driver Output/Receiver Input.
VCC (Pin 8): Positive Supply. 4.75V < VCC < 5.25V.
UU
FU CTIO TABLES
LTC1483 Transmitting
INPUTS
OUTPUTS
RE
DE
DI
B
A
X
1
1
0
1
X
1
0
1
0
0
0
X
Z
Z
1
0
X
Z*
Z*
*Shutdown mode for LTC1483
LTC1483 Receiving
INPUTS
RE
DE
A–B
0
0
≥ 0.2V
0
0
≤ – 0.2V
0
0 Inputs Open
1
0
X
*Shutdown mode for LTC1483
OUTPUTS
RO
1
0
1
Z*
4
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