參數(shù)資料
型號(hào): LTC1345ISW#TR
廠商: Linear Technology
文件頁(yè)數(shù): 1/12頁(yè)
文件大?。?/td> 0K
描述: IC TXRX V.35 SGL SUPPLY 28SOIC
標(biāo)準(zhǔn)包裝: 1,000
類型: 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù): 2/3
電源電壓: 4.75 V ~ 5.25 V
安裝類型: 表面貼裝
封裝/外殼: 28-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 28-SOIC
包裝: 帶卷 (TR)
1
LTC1345
Single Supply
V.35 Transceiver
s
Single Chip Provides All V.35 Differential Clock
and Data Signals
s
Operates From Single 5V Supply
s
Software Selectable DTE or DCE Configuration
s
Transmitters and Receivers Will Withstand
Repeated
±10kV ESD Pulses
s
Shutdown Mode Reduces ICC to 1A Typ
s
10MBaud Transmission Rate
s
Transmitter Maintains High Impedance When
Disabled, Shut Down, or with Power Off
s
Meets CCITT V.35 Specification
s
Transmitters are Short-Circuit Protected
The LTC
1345 is a single chip transceiver that provides the
differential clock and data signals for a V.35 interface from
a single 5V supply. Combined with an external resistor
termination network and an LT
1134A RS232 transceiver
for the control signals, the LTC1345 forms a complete low
power DTE or DCE V.35 interface port operating from a
single 5V supply.
The LTC1345 features three current output differential
transmitters, three differential receivers, and a charge
pump. The transceiver can be configured for DTE or DCE
operation or shut down using two Select pins. In the
Shutdown mode, the supply current is reduced to 1
A.
The transceiver operates up to 10Mbaud. All transmitters
feature short-circuit protection and a Receiver Output
Enable pin allows the receiver outputs to be forced into a
high impedance state. Both transmitter outputs and re-
ceiver inputs feature
±10kV ESD protection. The charge
pump features a regulated VEE output using three external
1
F capacitors.
s
Modems
s
Telecommunications
s
Data Routers
Clock and Data Signals for V.35 Interface
DCE
DTE
, LTC and LT are registered trademarks of Linear Technology Corporation.
4
1
F
VCC1
5V
2
1
F
1
F1F
1
F
28
27
3
6
1
2
26
25
12
11
18
17
1
F
DX
LTC1345
BI
627T500/1250
BI
627T500/1250
BI TECHNOLOGIES
627T500/1250 (SOIC) OR
899TR50/125 (DIP)
28
VCC2
5V
1
2
1
F
4
3
27
1
F
RX
T
TXD (103)
SCTE (113)
TXC (114)
RXC (115)
RXD (104)
GND (102)
T
7
3
4
24
23
10
13
9
16
15
DX
RX
T
11
14
13
20
19
1
6
2
26
25
T
12
11
18
17
10
14
8
9
3
7
4
24
23
T
8
13
10
9
16
15
7
5
7
5
8
6
22
21
T
RX
VCC1
10
14
LTC1345 TA01
9
VCC2
DX
50
=
125
T
50
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
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