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LTC1346

Description
10Mbps DCE/DTE V.35 Transceiver
File Size258KB,12 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
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LTC1346 Overview

10Mbps DCE/DTE V.35 Transceiver

LTC1346A
10Mbps DCE/DTE
V.35 Transceiver
FEATURES
s
s
DESCRIPTIO
s
s
s
s
s
s
s
s
Single Chip Provides Complete Differential Signal
Interface for V.35 Port
Drivers and Receivers Will Withstand Repeated
±10kV
ESD Pulses
10Mbaud Transmission Rate
Meets CCITT V.35 Specification
Operates from
±5V
Supplies
Shutdown Mode Reduces I
CC
to Below 1µA
Selectable Transmitter and Receiver Configurations
Independent Driver/Receiver Enables
Transmitter Maintains High Impedance When
Disabled, Shut Down or with Power Off
Transmitters Are Short-Circuit Protected
The LTC
®
1346A is a single chip transceiver that provides
the differential clock and data signals for a V.35 interface
from
±5V
supplies. Combined with an external resistor
termination network and an LT
®
1134A RS232 transceiver
for the control signals, the LTC1346A forms a complete low
power DTE or DCE V.35 interface port.
The LTC1346A features three current output differential
transmitters and three differential receivers. The trans-
ceiver can be configured for DTE or DCE operation or
shutdown using three Select pins. In the shutdown mode,
the supply current is reduced to below 1µA.
The LTC1346A transceiver operates up to 10Mbaud. All
transmitters feature short-circuit protection. Both the trans-
mitter outputs and the receiver outputs can be forced into
a high impedance state. The transmitter outputs and re-
ceiver inputs feature
±10kV
ESD protection.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATI
s
s
s
S
Modems
Telecommunications
Data Routers
TYPICAL APPLICATION
Clock and Data Signals for V.35 Interface
V
EE1
– 5V
+
0.1µF
1
V
CC1
5V
2
0.1µF
4
LTC1346A
24
DX
23
22
5
DX
21
1
2
3
4
T
TXC (114)
T
RXC (115)
T
RXD (104)
T
GND (102)
T
T
T
T
SCTE (113)
T
BI
627T500/1250
TXD (103)
T
BI
627T500/1250
12
11
10
9
1
2
3
4
5
6
7
16
15
14
13
24
23
22
21
20
19
3
12
DX
6
7
8
V
CC2
T
=
50Ω
BI TECHNOLOGIES
627T500/1250 (SOIC)
LTC1346 • TA01
DTE
DCE
LTC1346A
+
0.1µF
10
RX
RX
11
18 14
9
RX
17 13
16 12
10
RX
15 11
14 10
11
7
V
CC1
8
12
RX
13
3
9
8
DX
4
DX
5
50Ω
7
8
+
U
1
2
V
CC2
5V
V
EE2
–5V
0.1µF
125Ω
U
UO
+
1

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Description 10Mbps DCE/DTE V.35 Transceiver 10Mbps DCE/DTE V.35 Transceiver 10Mbps DCE/DTE V.35 Transceiver
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