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零件编号
产品描述 (功能)
ADM489ARZ-REEL7 查看數據表(PDF) - Analog Devices
零件编号
产品描述 (功能)
生产厂家
ADM489ARZ-REEL7
Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers
Analog Devices
ADM489ARZ-REEL7 Datasheet PDF : 16 Pages
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ADM488/ADM489
SWITCHING CHARACTERISTICS
3V
1.5V
0V
T
PLH
B
1/2VO
VO
1.5V
T
PHL
A
+VO
0V
–VO
90% POINT
10% POINT
T
R
T
SKEW
T
SKEW
90% POINT
10% POINT
T
F
Figure 11. Driver Propagation Delay, Rise/Fall Timing
A–B
0V
0V
T
PLH
RO
1.5V
T
PHL
1.5V
V
OH
V
OL
Figure 12. Receiver Propagation Delay
DE
A, B
A, B
RE
R
R
0V
1.5V
T
ZL
3V
1.5V
0V
T
LZ
2.3V
T
ZH
2.3V
V
OL
+ 0.5V
V
OL
T
HZ
V
OH
V
OH
– 0.5V
0V
Figure 13. Driver Enable/Disable Timing
1.5V
T
ZL
3V
1.5V
0V
T
LZ
1.5V
O/P LOW
T
ZH
1.5V
O/P HIGH
V
OL
+ 0.5V
V
OL
T
HZ
V
OH
V
OH
– 0.5V
Figure 14. Receiver Enable/Disable Timing
Rev. D | Page 8 of 16
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