Datasheet

LTC1535
15
1535fb
TYPICAL APPLICATION
3V
DE
Y
Z
DI
R
R
C
L1
C
L2
1535 TA02
A
B
Y
Z
TTL INPUTRO
RE
DE
DI
LTC1535
30k
A
B
Y
Z
TTL INPUT
RO
RE
DE
DI
LTC1535
1535 TA02b
30k
120Ω
**
D
Y
Z
SLO
2
1
1
1
R
A
120Ω
B
RO2
1535 TA02c
V
CC
RO
RE
DE
DI
GND
LOGIC COMMON
2
FLOATING RS485 COMMON ** COOPER [phone]
420kHz
28
27
26
25
4
17
15
16
18
12
13
1411
1
+
+
GND2
1/2 BAT54C
1/2 BAT54C
V
CC2
ST1 ST2
32
V
CC
RO
RE
V
CC
DI
1
10μF
10μF
2
CTX02-14659
Figure 20. Confi guring Receiver for TTL Level Input. Y and Z Outputs Are TTL Compatible with No Modifi cation
(20a) Noninverting (20b) Inverting
Figure 19. Fail-Safe Logic “0”
Full-Duplex Connection