參數(shù)資料
型號: MAX3469ESA
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 通用總線功能
英文描述: +5V, Fail-Safe, 40Mbps, Profibus RS-485/ RS-422 Transceivers
中文描述: LINE TRANSCEIVER, PDSO8
封裝: SOIC-8
文件頁數(shù): 10/14頁
文件大小: 309K
代理商: MAX3469ESA
M
+5V, Fail-Safe, 40Mbps, Profibus RS-485/
RS-422 Transceivers
10
______________________________________________________________________________________
Y
Z
V
OD
R
R
V
OC
Figure 5. Driver DC Test Load
DI
DE
3V
Y
V
ID
C
L
R
DIFF
Z
Figure 6. Driver Timing Test Circuit
DI
3V
0V
Z
Y
V
O
0V
-V
O
V
O
1.5V
1/2 V
O
1/2 V
O
t
PLH
t
F
t
R
t
PHL
10%
90%
90%
1.5V
10%
V
DIFF
= V (Y) - V (Z)
t
SKEW
= | t
PLH
- t
PHL
|
V
DIFF
f = 1MHz, t
R
3ns, t
F
3ns
Figure 7. Driver Propagation Delays
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
3V
0V
Y, Z
V
OL
Y, Z
0V
1.5V
1.5V
V
OL
+ 0.5V
V
OH
- 0.5V
50%
50%
t
ZL(SHDN)
, t
ZL
t
LZ
t
ZH(SHDN)
, t
ZH
t
HZ
DE
Figure 9. Driver Enable and Disable Times
V
OH
V
OL
A
B
1V
-1V
1.5V
1.5V
OUTPUT
INPUT
RO
t
PLH
t
PHL
f = 1MHz, t
R
3ns, t
F
3ns
Figure 10. Receiver Propagation Delays
3V
0V
V
CC
RO
RO
0V
1.5V
1.5V
RE
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
1.5V
1.5V
V
OL
+ 0.5V
V
OH
- 0.5V
t
ZL(SHDN)
, t
ZL
t
LZ
t
ZH(SHDN)
, t
ZH
t
HZ
Figure 11. Receiver Enable and Disable Times
S1
S2
OUTPUT
UNDER TEST
V
CC
C
L
R
L
Figure 8. Enable/Disable Timing Test Load
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