參數(shù)資料
型號(hào): ISL83491
廠商: Intersil Corporation
英文描述: 3.3V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers(3.3V, 低功率, 高速或帶有限斜率功能的RS-485/RS-422收發(fā)器)
中文描述: 3.3,低功耗,高速或擺率限制,RS-485/RS-422收發(fā)器(3.3V,低功率,高速或帶有限斜率功能的的RS-485/RS-422收發(fā)器)
文件頁(yè)數(shù): 8/17頁(yè)
文件大?。?/td> 542K
代理商: ISL83491
8
Test Circuits and Waveforms
FIGURE 1A. V
OD
AND V
OC
FIGURE 1B. V
OD
WITH COMMON MODE LOAD
FIGURE 1. DC DRIVER TEST CIRCUITS
FIGURE 2A. DIFFERENTIAL TEST CIRCUIT
FIGURE 2B. MEASUREMENT POINTS
FIGURE 2C. SINGLE ENDED TEST CIRCUIT
FIGURE 2. DRIVER PROPAGATION DELAY AND DIFFERENTIAL TRANSITION TIMES
D
DE
DI
V
CC
V
OD
V
OC
R
L
/2
R
L
/2
Z
Y
D
DE
DI
V
CC
V
OD
375
375
Z
Y
R
L
= 60
V
CM
-7V to +12V
D
DE
DI
3V
SIGNAL
GENERATOR
C
L
= 15pF
R
DIFF
= 60
Z
Y
C
L
= 15pF
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
t
DD
50%
t
DD
50%
SKEW = |t
PLH
(Y or Z) - t
PHL
(Z or Y)|
D
DE
DI
3V
SIGNAL
GENERATOR
Z
Y
C
L
= 15pF
R
L
= 27
V
OM
OUT
V
OH
+ V
OL
2
1.5V
V
OM
=
ISL83483, ISL83485, ISL83488, ISL83490, ISL83491
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