參數(shù)資料
型號: DC1786A
廠商: Linear Technology
文件頁數(shù): 19/36頁
文件大?。?/td> 0K
描述: BOARD DEMO LTC2871
設(shè)計資源: DC1786A Design Files
DC1786A Schematic
標準包裝: 1
主要目的: 接口,收發(fā)器,RS-232/RS-485
嵌入式:
已用 IC / 零件: LTC2871
主要屬性: 3 個驅(qū)動器,3 個接收器
次要屬性: 3 V ~ 5.5 V 電源
已供物品:
相關(guān)產(chǎn)品: LTC2871CUHF#PBF-ND - IC TXRX RS485/RS422 38-QFN
LTC2871IUHF#PBF-ND - IC TXRX RS485/RS422 38-QFN
LTC2871CFE#PBF-ND - IC TXRX RS485/RS422 38-TSSOP
LTC2871IFE#PBF-ND - IC TXRX RS485/RS422 38-TSSOP
LTC2871CUHF#TRPBF-ND - IC TXRX RS485/RS422 38-QFN
LTC2871IFE#TRPBF-ND - IC TXRX RS485/RS422 38-TSSOP
LTC2871IUHF#TRPBF-ND - IC TXRX RS485/RS422 38-QFN
LTC2871CFE#TRPBF-ND - IC TXRX RS485/RS422 38-TSSOP
LTC2870/LTC2871
26
28701f
Figure 32. LTC2871 in RS485 and
RS232 Mode, Both Half-Duplex
Figure 33. LTC2871 in RS485 and RS232
Mode, RS485 Half-Duplex, Loopback
Figure 34. LTC2871 in RS485
and RS232 Mode, RS485
Half-Duplex, Terminated
Figure 35. RS485 Duplex Switching
Figure 36. Microprocessor Interface
Figure 37. Driving Larger
RS232 Loads
TYPICAL APPLICATIONS
28701 F32
DX485
H/F
VL
CH2
TE485
RX485
RX232
LB
GND
LTC2871
DX232
D R 485
DIN1
ROUT2
DIN2
ROUT1
DOUT1
RIN2
DOUT2
RIN1
RO
DI
Z
Y
D R 232
28701 F33
DX232
DX485
LB
H/F
VL
RX485
RX232
TE485
CH2
GND
LTC2871
DIN1
ROUT2
DIN2
ROUT1
DOUT1
RIN2
DOUT2
RIN1
RO
DI
Z
Y
28701 F34
DX232
DX485
H/F
TE485
VL
RX232
RX485
CH2
LB
GND
LTC2871
DIN1
ROUT2
DIN2
ROUT1
DOUT1
RIN2
DOUT2
RIN1
RO
DI
120Ω
Z
Y
B
A
120Ω
28701 F35
485/232
TE485
VL
H/F
LB
RB
GND
RO
B
120Ω
A
LTC2870/
LTC2871
H/F
DI
DY
Z
120Ω
Y
HALF
DUPLEX
RS485
FULL
28701 F36
3V TO 5.5V
1.7V TO VCC
VCC
VL
GND
LTC2870/
LTC2871
DY, DIN1
RB, ROUT2
DZ, DIN2
RA, ROUT1
Y
B
Z
A
CONTROL
SIGNALS
μP
28701 F37
LTC2870/
LTC2871
RS232
CL
3k
DATA RATE
100kbps
500kbps
CL
5nF
1nF
VCC = 3V to 5.5V, VL = 1.7V to VCC. Logic input pins not shown are tied to a valid logic state.
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