参数资料
型号: ISL4489EIB-T
厂商: INTERSIL CORP
元件分类: 通用总线功能
英文描述: Low Power, High Speed and Slew Rate Limited, Full Duplex, RS-485/RS-422 Transceivers
中文描述: LINE TRANSCEIVER, PDSO14
封装: PLASTIC, MS-012AB, SOIC-14
文件页数: 7/12页
文件大小: 477K
代理商: ISL4489EIB-T
7
FN6074.2
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. RECEIVER PROPAGATION DELAY
FIGURE 5A. TEST CIRCUIT
FIGURE 5B. MEASUREMENT POINTS
FIGURE 5. RECEIVER ENABLE AND DISABLE TIMES
Test Circuits and Waveforms
(Continued)
D
DE
DI
C
L
500
Z
Y
V
CC
GND
SW
PARAMETER OUTPUT
RE
DI
SW
C
L
(pF)
t
HZ
Y/Z
X
1/0
GND
15
t
LZ
Y/Z
X
0/1
V
CC
15
t
ZH
Y/Z
X
1/0
GND
100
t
ZL
Y/Z
X
0/1
V
CC
100
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
SIGNAL
GENERATOR
R
RO
RE
A
B
+1.5V
15pF
RO
3V
0V
t
PLH
1.5V
1.5V
V
CC
0V
50%
50%
t
PHL
A
1k
V
CC
GND
SW
PARAMETER
DE
A
SW
t
HZ
t
LZ
t
ZH
t
ZL
X
+1.5V
GND
X
-1.5V
V
CC
GND
X
+1.5V
X
-1.5V
V
CC
SIGNAL
GENERATOR
R
RO
RE
A
B
15pF
RO
3V
0V
1.5V
1.5V
V
OH
0V
1.5V
V
OH
- 0.5V
t
HZ
RO
V
CC
V
OL
1.5V
V
OL
+ 0.5V
t
LZ
RE
OUTPUT HIGH
OUTPUT LOW
t
ZL
t
ZH
ISL4489E, ISL4491E
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