參數(shù)資料
型號(hào): LTC1685
廠商: Linear Technology Corporation
英文描述: 52Mbps, Precision Delay, RS485 Fail-Safe Transceiver
中文描述: 52Mbps的,精密延遲,485失效保護(hù)器
文件頁(yè)數(shù): 5/12頁(yè)
文件大?。?/td> 269K
代理商: LTC1685
5
LTC1685
TYPICAL PERFOR
M
A
CE CHARACTERISTICS
U
DI (Pin 4):
Driver Input. Controls the states of the A and
B outputs only if DE = High. If DE = Low, DI will have no
effect on A and B pins. Do not float.
GND (Pin 5):
Ground.
A (Pin 6):
Noninverting Receiver Input/Driver Output.
B (Pin 7):
Inverting Receiver Input/Driver Output.
V
DD
(Pin 8):
Positive Supply, 5V to
±
5%. Bypass with
0.1
μ
F ceramic capacitor.
PI
FU
CTIO
N
S
U
U
RO (Pin 1):
Receiver Output. If A
B by 300mV, then RO
will be high. If A
B by 300mV, then RO will be low.
RE (Pin 2):
Receiver Enable. RE = Low enables the
receiver. RE = High forces receiver output into high
impedance state. Do not float.
DE (Pin 3):
Driver Enable. DE = High enables the driver.
DE = Low will force the driver output into a high impedance
state and the device will function as a line receiver if RE is
also low. Do not float.
Driver Propagation Delay
vs Temperature
TEMPERATURE (
°
C)
–20
0
P
5
10
15
20
25
0
20
40
60
1685 G07
80
100
Driver Propagation Delay
vs Driver Input Voltage
DRIVER INPUT VOLTAGE (V)
2.5
P
15
20
25
4.5
1685 G08
10
5
0
3.0
3.5
4.0
5.0
t
LH
V
DD
= 5V
INPUT THRESHOLD = 1.5V
T
A
= 25
°
C
t
HL
Driver Propagation Delay
vs Capacitive Load
LOAD CAPACITANCE (pF)
5
16.0
P
16.5
17.0
17.5
18.0
19.0
15
25
50
75
1685 G11
100
150
18.5
T
A
= 25
°
C
相關(guān)PDF資料
PDF描述
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