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參數(shù)資料
| 型號(hào)： | LT1485 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Differential Bus Transceiver |
| 中文描述： | 差分總線收發(fā)器 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 257K |
| 代理商： | LT1485 |
5
LTC1485
PI FU
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 Output Enable. A high on DE enables the
driver outputs, A and B. A low input will force the driver
outputs into a high impedance state.
U
DI (Pin 4):
Driver Input. If the driver outputs are enabled
(DE high), then a low on DI forces the driver outputs A low
and B high. A high on DI will force A high and B low.
GND (Pin 5):
Ground Connection.
A (Pin 6):
Driver Output/Receiver Input.
B (Pin 7):
Driver Output/Receiver Input.
V
CC
(Pin 8):
Positive Supply. 4.75V
≤
V
CC
≤
5.25V.
TEST CIRCUITS
Figure 3. Receiver Timing Test Load
1k
1485 F03
C
L
S1
S2
1k
V
CC
RECEIVER
OUTPUT
Figure 4. Driver Timing Test Load
1485 F04
C
L
S1
S2
500
V
CC
OUTPUT
UNDER TEST
V
OD2
A
B
R
R
V
OC
1485 F01
DI
R
DIFF
1485 F02
DRIVER
RECEIVER
C
L1
C
L2
RO
15pF
A
B
A
B
Figure 1. Driver DC Test Load
Figure 2. Driver/Receiver Timing Test Circuit
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| LTC1485CN8 | Differential Bus Transceiver |
| LTC1485CS8 | Differential Bus Transceiver |
| LTC1485I | Differential Bus Transceiver |
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