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參數資料
| 型號： | ADM485 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | +5 V Low Power EIA RS-485 Transceiver |
| 中文描述： | 5 V低功耗環境影響評估的RS - 485收發器 |
| 文件頁數： | 4/8頁 |
| 文件大小： | 133K |
| 代理商： | ADM485 |
ADM485
Test Circuits
REV. A
–4–
R
R
V
OC
V
OD
Figure 1. Driver Voltage Measurement Test Circuit
375
V
OD3
V
TST
375
60
Figure 2. Driver Voltage Measurement Test Circuit 2
A
B
R
LDIFF
C
L1
C
L2
Figure 3. Driver Propagation Delay Test Circuit
V
OUT
C
L
A
B
V
CC
S2
R
L
S1
0V OR 3V
DE IN
DE
Figure 4. Driver Enable/Disable Test Circuit
C
L
V
OUT
RE
A
B
Figure 5. Receiver Propagation Delay Test Circuit
V
OUT
V
CC
S2
R
L
S1
RE IN
RE
C
L
+1.5V
–1.5V
Figure 6. Receiver Enable/Disable Test Circuit
T
PLH
T
PHL
0V
0V
1.5V
1.5V
A
–
B
RO
V
OL
V
OH
Figure 9. Receiver Propagation Delay
T
ZH
1.5V
1.5V
3V
0V
1.5V
T
HZ
V
OH
V
OH
–
0.5V
0V
R
V
OL
+ 0.5V
T
ZL
1.5V
T
LZ
V
OL
R
RE
O/P LOW
O/P HIGH
Figure 10. Receiver Enable/Disable Timing
Switching Characteristics
–
VO
VO
1/2VO
0V
3V
1.5V
1.5V
T
PLH
T
SKEW
VO
0V
90% POINT
10% POINT
90% POINT
10% POINT
T
PHL
B
A
T
SKEW
T
R
T
F
Figure 7. Driver Propagation Delay, Rise/Fall Timing
T
ZH
1.5V
DE
1.5V
3V
0V
2.3V
T
HZ
V
OH
V
OH
–
0.5V
0V
A, B
V
OL
+ 0.5V
T
ZL
2.3V
T
LZ
V
OL
A, B
Figure 8. Driver Enable/Disable Timing
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PDF描述 |
|---|---|
| ADM485AN | +5 V Low Power EIA RS-485 Transceiver |
| ADM485AQ | TRANSISTOR, NFET, 7002, SOT-23 |
| ADM485AR | +5 V Low Power EIA RS-485 Transceiver |
| ADM485JN | +5 V Low Power EIA RS-485 Transceiver |
| ADM485JR | +5 V Low Power EIA RS-485 Transceiver |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADM4850 | 制造商:AD 制造商全稱:Analog Devices 功能描述:5 V Slew-Rate Limited Half- and Full-Duplex RS-485/RS-422 Transceivers |
| ADM4850_12 | 制造商:AD 制造商全稱:Analog Devices 功能描述:5 V, Slew-Rate Limited, Half-Duplex and Full-Duplex RS-485/RS-422 Transceivers |
| ADM4850ACP-REEL | 制造商:AD 制造商全稱:Analog Devices 功能描述:5 V Slew-Rate Limited Half- and Full-Duplex RS-485/RS-422 Transceivers |
| ADM4850ACP-REEL7 | 制造商:AD 制造商全稱:Analog Devices 功能描述:5 V Slew-Rate Limited Half- and Full-Duplex RS-485/RS-422 Transceivers |
| ADM4850ACPZ-REEL7 | 功能描述:IC TXRX RS485/422 115KBPS 8LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:121 系列:- 類型:收發器 驅動器/接收器數:1/1 規程:RS422，RS485 電源電壓:3 V ~ 3.6 V 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應商設備封裝:10-DFN（3x3） 包裝:管件 |
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