參數(shù)資料
型號: ADM3491ARU-1REEL7
廠商: Analog Devices Inc
文件頁數(shù): 7/20頁
文件大?。?/td> 0K
描述: IC TXRX RS-485 HS 3.3V 16TSSOP
標準包裝: 1
類型: 收發(fā)器
驅(qū)動器/接收器數(shù): 1/1
規(guī)程: RS422,RS485
電源電壓: 3 V ~ 3.6 V
安裝類型: 表面貼裝
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
供應商設(shè)備封裝: 16-TSSOP
包裝: 標準包裝
其它名稱: ADM3491ARU-1REEL7DKR
Data Sheet
ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
Rev. E | Page 15 of 20
LINE LENGTH vs. DATA RATE
The RS-485 and RS-422 standards cover line lengths up to 4000 feet. For line lengths greater than 4000 feet, see Figure 36.
B
A
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D
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DE
ADM3483/
ADM3485
ADM3483/
ADM3485
ADM3483/
ADM3485
ADM3483/
ADM3485
B
A
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RO RE
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05
52
4-
022
MAXIMUM NUMBER OF TRANSCEIVERS ON BUS = 32
RT
NOTES
1. RT IS EQUAL TO THE CHARACTERISTIC IMPEDANCE OF THE CABLE.
VCC
R1
R2
Figure 32. ADM3483/ADM3485 Typical Half-Duplex RS-485 Network
R
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RO
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ADM3491
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0552
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090
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ADM3491
MASTER
SLAVE
A
B
Z
Y
RE
MAXIMUM NUMBER OF NODES = 32
ADM3491
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Y
RE
SLAVE
NOTES
1. RT IS EQUAL TO THE CHARACTERISTIC IMPEDANCE OF THE CABLE.
RT
VCC
R1
R2
RT
VCC
R1
R2
Figure 33. ADM3491 Typical Full-Duplex RS-485 Network
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