ltc2871fe Linear Technology Corporation, ltc2871fe Datasheet - Page 12

• Manufacturer Part Number: ltc2871fe
• Description: Ltc2870/ltc2871 - Rs232/rs485 Multiprotocol Transceivers With Integrated Termination
• Manufacturer: Linear Technology Corporation

BLOCK DIAGRAM
LTC2870/LTC2871
12
ROUT1
ROUT2
DX232
DX485
RX232
RX485
TE485
DIN1
DIN2
CH2
FEN
H/F
RO
LB
DI
LOOPBACK
PATH
0.1μF
1.7V TO 5.5V
CONTROL
(≤ V
LOGIC
CC
RECEIVERS
232
485
232
DRIVERS
)
V
485
L
232
232
RT232
RT485
RT232
PULSE-SKIPPING
2.2μF
REGULATOR
LTC2871
3V TO 5.5V
f = 1.2MHz
5k
5k
BOOST
125k
GND
V
CC
10μH
125k
RT485
SW
220nF
H/F
120Ω
125k
125k
CAP
RT485
120Ω
2871 BD
V
V
DOUT1
Y
Z
DOUT2
RIN1
A
B
RIN2
DD
EE
1μF
1μF
28701f