LTC2871IFE#PBF Linear Technology, LTC2871IFE#PBF Datasheet - Page 25

• Manufacturer Part Number: LTC2871IFE#PBF
• Description: IC, RS232-RS485 TXRX, 200MBPS, 5.5V, TSSOP-38
• Manufacturer: Linear Technology

Specifications of LTC2871IFE#PBF

• Device Type: Transceiver
• No. Of Drivers: 2
• Supply Voltage Range: 3V To 5.5V
• Driver Case Style: TSSOP
• No. Of Pins: 38
• Operating Temperature Range: -40°C To +85°C
• Rohs Compliant: Yes
• Ic Interface Type: RS232, RS485

TYPICAL APPLICATIONS
V
RS
232
CC
= 3V to 5.5V, V
RS
485
Figure 26. LTC2870 Protocol Switching
V
V
L
L
DX232
RX485
CH2
DIN1
ROUT1
DXEN
485/232
DY
DZ
RA
RB
Figure 29. LTC2871 Single
RS232 Channel Active
TE485
L
LTC2870
= 1.7V to V
LTC2871
GND
GND
CC
DOUT1
DX485
RX232
. Logic input pins not shown are tied to a valid logic state.
TE485
120Ω
120Ω
RXEN
28701 F29
RIN1
Y
Z
A
B
28701 F26
H/F
H/F
LB
LB
V
V
Figure 27. LTC2871 in RS485 Mode
L
L
DX485
RX232
DI
RO
DX232
DX485
DI
RO
DIN1
ROUT1
DIN2
ROUT2
Figure 30. LTC2871 in
RS485 and RS232 Mode
LTC2871
LTC2871
GND
GND
DOUT1
DOUT2
RX232
RX485
DX232
RX485
TE485
TE485
28701 F30
28701 F27
RIN1
RIN2
CH2
CH2
H/F
H/F
LB
LB
Y
A
B
Y
Z
A
B
Z
LTC2870/LTC2871
V
V
Figure 28. LTC2871 in RS232 Mode
L
L
Figure 31. LTC2871 in RS485 and
RS232 Mode with Loopback and
RS485 Termination
DX232
DX485
LB
TE485
DI
RO
DIN1
ROUT1
DIN2
DX232
RX485
ROUT2
DIN1
ROUT1
DIN2
ROUT2
LTC2871
LTC2871
GND
GND
120Ω
120Ω
DOUT1
DOUT2
DOUT1
DOUT2
RX232
RX485
DX485
RX232
TE485
28701 F31
25
RIN1
RIN2
28701 F28
RIN1
RIN2
CH2
CH2
H/F
H/F
LB
Y
Z
A
B
28701f