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SP3485CP Folha de dados(PDF) 5 Page - Sipex Corporation

Nome de Peças SP3485CP
Descrição Electrónicos  3.3V Low Power Half-Duplex RS-485 Transceivers with 10Mbps Data Rate
PDF  9 Pages
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Fabricante Electrônico  SIPEX [Sipex Corporation]
Página de início  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SP3485CP Folha de dados(HTML) 5 Page - Sipex Corporation

  SP3485CP Datasheet HTML 1Page - Sipex Corporation SP3485CP Datasheet HTML 2Page - Sipex Corporation SP3485CP Datasheet HTML 3Page - Sipex Corporation SP3485CP Datasheet HTML 4Page - Sipex Corporation SP3485CP Datasheet HTML 5Page - Sipex Corporation SP3485CP Datasheet HTML 6Page - Sipex Corporation SP3485CP Datasheet HTML 7Page - Sipex Corporation SP3485CP Datasheet HTML 8Page - Sipex Corporation SP3485CP Datasheet HTML 9Page - Sipex Corporation  
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5
10/15/02
SP3481/3485 Low Power Half-Duplex RS485 Transceivers
© Copyright 2002 Sipex Corporation
INPUTS
OUTPUTS
LINE
RE
DE
DI CONDITION
B
A
X1
1
No Fault
0
1
X1
0
No Fault
1
0
X0
X
X
ZZ
INPUTS
OUTPUTS
RE
DE
A - B
R
00
+0.2V
1
00
-0.2V
0
00
Inputs Open
1
10
X
Z
Table 1. Transmit Function Truth Table
Table 2. Receive Function Truth Table
Figure 2. Driver Propagation Delay Test Circuit
Figure 4. Driver Enable and Disable Timing Circuit,
Output HIGH
Figure 1. Driver DC Test Load Circuit
Figure 6. Receiver Propagation Delay Test Circuit
Figure 7. Receiver Enable and Disable Timing Circuit
R
R
VOC
D
VCC
VOD
GENERATOR
(NOTE 1)
50Ω
VCC
S1
VDM
RL = 27Ω
OUT
CL = 15pF
(NOTE 2)
VOM =
1.5V
VOH + VOL
2
D
GENERATOR
(NOTE 1)
50Ω
S1
RL = 110Ω
OUT
CL = 50pF
(NOTE 2)
VOM =
1.5V
VOH + VOL
2
D
GENERATOR
(NOTE 1)
50Ω
S1
RL = 110Ω
OUT
CL = 50pF
(NOTE 2)
D
0V OR 3V
VCC
GENERATOR
(NOTE 1)
50Ω
1.5V
0V
VID
R
OUT
CL = 15pF
(NOTE 2)
VOM = VCC
2
1.5V
-1.5V
S3
VID
GENERATOR
(NOTE 1)
50Ω
CL = 15pF
(NOTE 2)
R
1k
S1
S2
VCC
Figure 5. Driver Enable and Disable Timing Circuit,
Output LOW
GENERATOR
(NOTE 1)
50Ω
CL
OUT
D
VCC
RL =
60Ω
CL = 15pF (NOTE 2)
Figure 3. Driver Differential Output Delay and Transition
Time Circuit



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