LTC1345CSW#PBF datasheet, PDF - EEWORLD Datasheet

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LTC1345CSW#PBF: DescriptionTriple Transmitter/Receiver RS-422/RS-485 28-Pin SOIC W Tube; File Size202KB，12 Pages; ManufacturerADI; Websitehttps://www.analog.com

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LTC1345CSW#PBF Overview

Triple Transmitter/Receiver RS-422/RS-485 28-Pin SOIC W Tube

LTC1345CSW#PBF Parametric

Parameter Name	Attribute value
EU restricts the use of certain hazardous substances	Compliant
ECCN (US)	EAR99
Part Status	Active
HTS	8542.39.00.01
Function	Line Transceiver
Data Rate	15MBd
Transmitter Communication Type	RS-485\|RS-422
Receiver Communication Type	RS-422\|RS-485
Interface Standards	V.35
Data Transmission Topology	Multidrop\|Multipoint
Number of Transceivers	1
Number of Transmitters	3
Number of Receivers	3
Transmitter Signal Type	Differential
Receiver Signal Type	Differential
Number of Drivers per Line	1@RS-422\|32@RS-485
Number of Receivers per Line	10@RS-422\|32@RS-485
Driving Mode	3-State
Number of Transmitter Enables	0
Number of Receiver Enables	1
Minimum Operating Temperature (°C)	0
Maximum Operating Temperature (°C)	70
Power Supply Type	Single
Minimum Single Supply Voltage (V)	4.75
Typical Single Supply Voltage (V)	5
Maximum Single Supply Voltage (V)	5.25
Maximum Supply Current (mA)	170
Supplier Temperature Grade	Commercial
Packaging	Tube
Pin Count	28
Supplier Package	SOIC W
Standard Package Name	SOP
Mounting	Surface Mount
Package Height	2.34(Max)
Package Length	18.08(Max)
Package Width	7.6(Max)
PCB changed	28
Lead Shape	Gull-wing

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LTC1345

Single Supply

V.35 Transceiver

FEATURES

DESCRIPTIO

Single Chip Provides All V.35 Differential Clock

and Data Signals

Operates From Single 5V Supply

Software Selectable DTE or DCE Configuration

Transmitters and Receivers Will Withstand

Repeated

±10kV

ESD Pulses

Shutdown Mode Reduces I

to 1µA Typ

10MBaud Transmission Rate

Transmitter Maintains High Impedance When

Disabled, Shut Down, or with Power Off

Meets CCITT V.35 Specification

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 1µA.

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 V

output using three external

1µF capacitors.

, LTC and LT are registered trademarks of Linear Technology Corporation.

APPLICATIO S

Modems

Telecommunications

Data Routers

TYPICAL APPLICATIO

1µF

CC1

1µF

LTC1345

1µF

Clock and Data Signals for V.35 Interface

1µF

CC2

LTC1345

1µF

DTE

1µF

627T500/1250

GND (102)

RXD (104)

RXC (115)

TXC (114)

SCTE (113)

627T500/1250

TXD (103)

DCE

1µF

CC2

CC1

50Ω

BI TECHNOLOGIES

627T500/1250 (SOIC) OR

899TR50/125 (DIP)

LTC1345 • TA01

125Ω

LTC1345CSW#PBF Related Products

	LTC1345CSW#PBF	LTC1345CNW#PBF	LTC1345CSW#TRPBF	LTC1345ISW#PBF	LTC1345ISW#TRPBF
Description	Triple Transmitter/Receiver RS-422/RS-485 28-Pin SOIC W Tube	Triple Transmitter/Receiver RS-422/RS-485 28-Pin PDIP W Tube	Triple Transmitter/Receiver RS-422/RS-485 28-Pin SOIC W T/R	Triple Transmitter/Receiver RS-422/RS-485 28-Pin SOIC W Tube	Triple Transmitter/Receiver RS-422/RS-485 28-Pin SOIC W T/R
EU restricts the use of certain hazardous substances	Compliant	Compliant	Compliant	Compliant	Compliant
ECCN (US)	EAR99	EAR99	EAR99	EAR99	EAR99
Part Status	Active	Active	Active	Active	Active
HTS	8542.39.00.01	8542.39.00.01	8542.39.00.01	8542.39.00.01	8542.39.00.01
Function	Line Transceiver	Line Transceiver	Line Transceiver	Line Transceiver	Line Transceiver
Data Rate	15MBd	15MBd	15MBd	15MBd	15MBd
Transmitter Communication Type	RS-485\|RS-422	RS-422\|RS-485	RS-422\|RS-485	RS-422\|RS-485	RS-422\|RS-485
Receiver Communication Type	RS-422\|RS-485	RS-485\|RS-422	RS-485\|RS-422	RS-422\|RS-485	RS-422\|RS-485
Interface Standards	V.35	V.35	V.35	V.35	V.35
Data Transmission Topology	Multidrop\|Multipoint	Multidrop\|Multipoint	Multipoint\|Multidrop	Multidrop\|Multipoint	Multidrop\|Multipoint
Number of Transceivers	1	1	1	1	1
Number of Transmitters	3	3	3	3	3
Number of Receivers	3	3	3	3	3
Transmitter Signal Type	Differential	Differential	Differential	Differential	Differential
Receiver Signal Type	Differential	Differential	Differential	Differential	Differential
Number of Drivers per Line	1@RS-422\|32@RS-485	1@RS-422\|32@RS-485	32@RS-485\|1@RS-422	1@RS-422\|32@RS-485	1@RS-422\|32@RS-485
Number of Receivers per Line	10@RS-422\|32@RS-485	10@RS-422\|32@RS-485	10@RS-422\|32@RS-485	10@RS-422\|32@RS-485	10@RS-422\|32@RS-485
Driving Mode	3-State	3-State	3-State	3-State	3-State
Number of Receiver Enables	1	1	1	1	1
Maximum Operating Temperature (°C)	70	70	70	85	85
Power Supply Type	Single	Single	Single	Single	Single
Minimum Single Supply Voltage (V)	4.75	5.25	4.75	4.75	4.75
Typical Single Supply Voltage (V)	5	5	5	5	5
Maximum Single Supply Voltage (V)	5.25	4.75	5.25	5.25	5.25
Maximum Supply Current (mA)	170	170	170	170	170
Supplier Temperature Grade	Commercial	Commercial	Commercial	Industrial	Industrial
Packaging	Tube	Tube	Tape and Reel	Tube	Tape and Reel
Pin Count	28	28	28	28	28
Supplier Package	SOIC W	PDIP W	SOIC W	SOIC W	SOIC W
Standard Package Name	SOP	DIP	SOP	SOP	SOP
Mounting	Surface Mount	Through Hole	Surface Mount	Surface Mount	Surface Mount
Package Height	2.34(Max)	3.81	2.34(Max)	2.34(Max)	2.34(Max)
Package Length	18.08(Max)	36.96(Max)	18.08(Max)	18.08(Max)	18.08(Max)
Package Width	7.6(Max)	14.22(Max)	7.6(Max)	7.6(Max)	7.6(Max)
PCB changed	28	28	28	28	28
Lead Shape	Gull-wing	Through Hole	Gull-wing	Gull-wing	Gull-wing

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