參數(shù)資料
型號(hào): ADM1485JN
廠商: ANALOG DEVICES INC
元件分類: 通用總線功能
英文描述: +-5 V Low Power EIA RS-485 Transceiver
中文描述: LINE TRANSCEIVER, PDIP8
封裝: PLASTIC, MO-095AA, DIP-8
文件頁數(shù): 4/8頁
文件大?。?/td> 139K
代理商: ADM1485JN
ADM1485
Test Circuits
REV. A
–4–
V
OD
R
R
V
OC
Figure 1. Driver Voltage Measurement Test Circuit
V
OD3
60
375
375
V
TST
Figure 2. Driver Voltage Measurement Test Circuit 2
R
LDIFF
A
B
C
L1
C
L2
Figure 3. Driver Propagation Delay Test Circuit
DE
0V OR 3V
DE IN
A
B
S1
C
L
V
OUT
R
L
S2
V
CC
Figure 4. Driver Enable/Disable Test Circuit
RE
A
B
C
L
V
OUT
Figure 5. Receiver Propagation Delay Test Circuit
RE
+1.5V
RE
IN
S1
C
L
V
OUT
R
L
S2
V
CC
–1.5V
Figure 6. Receiver Enable/Disable Test Circuit
Switching Characteristics
3V
0V
B
A
0V
VO
VO
90% POINT
10% POINT
T
R
T
SKEW
1/2VO
T
PLH
1.5V
1.5V
T
PHL
T
SKEW
90% POINT
10% POINT
T
F
VO
Figure 7. Driver Propagation Delay, Rise/Fall Timing
DE
A, B
A, B
1.5V
2.3V
2.3V
T
ZH
T
ZL
1.5V
3V
0V
V
OL
V
OH
0V
V
OL
+0.5V
V
OH
0.5V
T
HZ
T
LZ
Figure 8. Driver Enable/Disable Timing
A, B
RO
0V
T
PLH
1.5V
0V
T
PHL
1.5V
V
OH
V
OL
Figure 9. Receiver Propagation Delay
RE
R
R
1.5V
1.5V
1.5V
T
ZH
T
ZL
1.5V
3V
0V
V
OL
V
OH
V
OL
+0.5V
V
OH
0.5V
T
HZ
T
LZ
O/P LOW
O/P HIGH
0V
Figure 10. Receiver Enable/Disable Timing
相關(guān)PDF資料
PDF描述
ADM1485JR +-5 V Low Power EIA RS-485 Transceiver
ADM1486JN +5 V Low Power RS-485 PROFIBUS Transceiver
ADM1486JR +5 V Low Power RS-485 PROFIBUS Transceiver
ADM1486 +5 V Low Power RS-485 PROFIBUS Transceiver
ADM1486AN +5 V Low Power RS-485 PROFIBUS Transceiver
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