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參數(shù)資料
| 型號： | SP431 |
| 英文描述： | High Speed, +3.3V Quad RS-422 Differential Line Driver(高速, +3.3V，四路RS-422差分線驅(qū)動器) |
| 中文描述： | 高速，3.3V的四路RS - 422差分線路驅(qū)動器（高速，3.3，四路的RS - 422差分線驅(qū)動器） |
| 文件頁數(shù)： | 5/10頁 |
| 文件大?。?/td> | 194K |
| 代理商： | SP431 |
5
Rev. 2/5/01
SP431 High Speed, +3.3V Quad RS-422 Differential Line Driver
Copyright 2001 Sipex Corporation
Figure 4. Driver Single-Ended TRI-STATE Test Circuit
Figure 5. Driver Single-Ended TRI-STATE Waveforms
Figure 2. AC Test Circuit
Figure 3. Propagation Delays
AC TEST CIRCUITS AND SWITCHING TIME WAVEFORMS
D
Generator
Driver
Enabled
DI
X
50
CL
CL
CL
RL
D0
X
A
D0
X
B
Figure 6. Differential Rise and Fall Times
t
TLH
t
THL
3.0V
0.0V
INPUT
OUTPUT
(DIFFERENTIAL)
10%
90%
90%
10%
Input pulse: f = 1MHz, 50%
t
r
< 6ns
t
f
< 6ns
f=1 MHz t
R
< 10ns, t
F
< 10ns
1.5V
1.5V
t
PLHD
t
PHLD
DRIVER
DIOUTPUT
20%
20%
0V
0V
t
TLH
t
THL
80%
80%
V
DIFF
= V
A
- V
B
0V (Differential)
0V
3V
GND
V
OH
V
OL
DRIVER D0
X
B
DRIVER D0
X
A
V
CC
S1
ENABLE
ENABLE
D0
X
A
S2
D0
X
B
CL
110
Test
S3
V
CC
If ENABLE is the selected input, then ENABLE = HIGH
If ENABLE is the selected input, then ENABLE = LOW
To force the driver outputs into high-Z, ENABLE = LOW
ENABLE = HIGH
ENABLE
1.5V
3V
1.5V
0V
t
PHZ
t
PLZ
V
OL
+ 0.3V
t
PZH
1.3V
V
OH
GND
t
PZL
V
CC
V
OL
1.3V
Input = ENABLE or ENABLE
S1= V
CC
S2 = D0
X
A
S3 = GND
and/or
S1 = GND
S2 = D0
X
B
S3 = GND
Input = ENABLE or ENABLE
S1= GND
S2 = D0
X
B
S3 = V
CC
and/or
S1 = V
CC
S2 = D0
X
A
S3 = V
CC
V
OH
= 0.3V
ENABLE
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