參數(shù)資料
型號: ISL8487
廠商: Intersil Corporation
英文描述: 1/8 Unit Load, 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers(1/8 單位負載、5V、小功率、高速或帶有限斜率功能的RS-485/RS-422收發(fā)器)
中文描述: 1 / 8單位負載,5V,低功耗,高速或擺率限制,RS-485/RS-422收發(fā)器(1 / 8單位負載,5V的,小功率,高速或帶有限斜率功能的RS-485/RS -422收發(fā)器)
文件頁數(shù): 7/13頁
文件大?。?/td> 453K
代理商: ISL8487
7
FN6050.7
July 31, 2006
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. RECEIVER PROPAGATION DELAY
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 = |t
PLH
(Y or Z) - t
PHL
(Z or Y)|
D
DE
DI
C
L
500
Ω
Z
Y
V
CC
GND
SW
(SHDN) for ISL8487 and ISL81483 only.
PARAMETER OUTPUT
t
HZ
t
LZ
t
ZH
t
ZL
t
ZH(SHDN)
t
ZL(SHDN)
RE
X
X
DI
1/0
0/1
1/0
0/1
1/0
0/1
SW
GND
V
CC
GND
V
CC
GND
V
CC
C
L
(pF)
15
15
100
100
100
100
Y/Z
Y/Z
Y/Z
Y/Z
Y/Z
Y/Z
0 (Note 5)
0 (Note 5)
1 (Note 7)
1 (Note 7)
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
ZL(SHDN)
NOTE 7
t
ZH
, t
ZH(SHDN)
NOTE 7
NOTE 7
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
ISL8487, ISL81483, ISL81487
相關PDF資料
PDF描述
ISL81485IU 5V, 30Mbps, RS-485/RS-422 Transceiver
ISL81485IB 5V, 30Mbps, RS-485/RS-422 Transceiver
ISL81485IB-T 5V, 30Mbps, RS-485/RS-422 Transceiver
ISL81485IU-T 5V, 30Mbps, RS-485/RS-422 Transceiver
ISL81485 5V, 30Mbps, RS-485/RS-422 Transceiver(5V, 30Mbps, RS-485/RS-422收發(fā)器)
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