參數(shù)資料
型號(hào): ISL81485IU
廠商: INTERSIL CORP
元件分類: 通用總線功能
英文描述: 5V, 30Mbps, RS-485/RS-422 Transceiver
中文描述: LINE TRANSCEIVER, PDSO8
封裝: PLASTIC, MO-187AA, MSOP-8
文件頁(yè)數(shù): 5/11頁(yè)
文件大?。?/td> 371K
代理商: ISL81485IU
5
FIGURE 2A. TEST CIRCUIT
FIGURE 2B. MEASUREMENT POINTS
FIGURE 2. DRIVER PROPAGATION DELAY AND DIFFERENTIAL TRANSITION TIMES
FIGURE 3A. TEST CIRCUIT
FIGURE 3B. MEASUREMENT POINTS
FIGURE 3. DRIVER ENABLE AND DISABLE TIMES
FIGURE 4A. TEST CIRCUIT
FIGURE 4B. MEASUREMENT POINTS
FIGURE 4. DRIVER DATA RATE
Test Circuits and Waveforms
(Continued)
D
DE
DI
V
CC
SIGNAL
GENERATOR
C
L
= 100pF
R
DIFF
Z
Y
C
L
= 100pF
OUT (Y)
3V
0V
t
PLH
1.5V
1.5V
V
OH
V
OL
50%
50%
t
PHL
OUT (Z)
t
PHL
V
OH
V
OL
50%
50%
t
PLH
DIFF OUT (Y - Z)
t
R
+V
OD
-V
OD
90%
90%
t
F
10%
10%
DI
SKEW = |CROSSING PT. OF Y
& Z
- CROSSING PT. OF Y
& Z
|
D
DE
DI
C
L
110
Z
Y
V
CC
GND
SW
PARAMETER OUTPUT
RE
DI
SW
C
L
(pF)
50
t
HZ
t
LZ
t
ZH
t
ZL
Y / Z
X
1 / 0
GND
Y / Z
X
0 / 1
V
CC
GND
50
Y / Z
X
1 / 0
50
Y / Z
X
0 / 1
V
CC
50
SIGNAL
GENERATOR
OUT (Y, Z)
3V
0V
1.5V
1.5V
V
OH
0V
2.3V
V
OH
- 0.5V
t
HZ
OUT (Y, Z)
V
CC
V
OL
2.3V
V
OL
+ 0.5V
t
LZ
DE
OUTPUT HIGH
OUTPUT LOW
t
ZL
t
ZH
D
DE
DI
V
CC
SIGNAL
GENERATOR
C
L
= 100pF
R
DIFF
Z
Y
C
L
= 100pF
3V
0V
DIFF OUT (Y - Z)
+V
OD
-V
OD
DI
0V
ISL81485
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