LTC1545IG#TR Linear Technology, LTC1545IG#TR Datasheet

IC TXRX SOFTWARE SELECTBL 36SSOP

LTC1545IG#TR

Manufacturer Part Number
LTC1545IG#TR
Description
IC TXRX SOFTWARE SELECTBL 36SSOP
Manufacturer
Linear Technology
Type
Transceiverr
Datasheet

Specifications of LTC1545IG#TR

Number Of Drivers/receivers
5/5
Voltage - Supply
4.75 V ~ 5.25 V
Mounting Type
Surface Mount
Package / Case
36-SSOP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Protocol
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC1545IG#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
FEATURES
TYPICAL APPLICATIO
APPLICATIO S
Software-Selectable Transceiver Supports:
RS232, RS449, EIA530, EIA530-A, V.35, V.36, X.21
TUV/Detecon Inc. Certified NET1 and NET2
Compliant (Test Report No. NET2/071601/98)
TBR2 Compliant (Test Report No. CTR2/071601/98)
Software-Selectable Cable Termination Using
the LTC1344A
Complete DTE or DCE Port with LTC1543, LTC1344A
Operates from Single 5V Supply with LTC1543
Data Networking
CSU and DSU
Data Routers
RL
D5
21
TM
R5
25
R4
RI
*
D4
LL
18
U
CTS
13
R3
5
DSR
R2
22
6
DTE or DCE Multiprotocol Serial Interface with DB-25 Connector
R1
LTC1545
U
DCD
D3
10
8
DTR
D2
23
DB-25 CONNECTOR
20
RTS
D1
19
4
1
7
DESCRIPTIO
The LTC
ceiver. The LTC1545 and LTC1543 form the core of a
complete software-selectable DTE or DCE interface port that
supports the RS232, RS449, EIA530, EIA530-A, V.35, V.36
or X.21 protocols. Cable termination may be implemented
using the LTC1344A software-selectable cable termination
chip or by using existing discrete designs.
The LTC1545 runs from a 5V supply and the charge pump on
the LTC1543. The part is available in a 36-lead SSOP surface
mount package.
RXD
16
R3
, LTC and LT are registered trademarks of Linear Technology Corporation.
Multiprotocol Transceiver
3
RXC
R2
9
®
17
1545 is a 5-driver/5-receiver multiprotocol trans-
R1
LTC1543
Software-Selectable
TXC
12
D3
U
15
SCTE
D2
11
24
TXD
D1
14
2
1545 TA01
*OPTIONAL
LTC1545
LTC1344A
1

Related parts for LTC1545IG#TR

LTC1545IG#TR Summary of contents

Page 1

... LTC1344A software-selectable cable termination chip or by using existing discrete designs. The LTC1545 runs from a 5V supply and the charge pump on the LTC1543. The part is available in a 36-lead SSOP surface mount package. , LTC and LT are registered trademarks of Linear Technology Corporation. DCD DTR RTS RXD ...

Page 2

LTC1545 ABSOLUTE MAXIMUM (Note 1) Supply Voltage V ..................................................................... 6. ........................................................ – 10V to 0. ....................................................... – 0.3V to 10V DD Input Voltage Transmitters ........................... – 0. Receivers ............................................... – 18V ...

Page 3

ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the full operating temperature range, otherwise specifications are 5V 8V – 7V for V.28, – 5.5V for V.10, V.11 (Notes ...

Page 4

LTC1545 ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the full operating temperature range, otherwise specifications are 5V 8V – 7V for V.28, – 5.5V for V.10, V.11 (Notes ...

Page 5

PIN FUNCTIONS V (Pins 1, 19): Positive Supply for the Transceivers. CC 4.75V V 5.25V. Connect capacitor to ground (Pins 2, 20): Positive Supply Voltage for V.28. Con- DD nect to V ...

Page 6

LTC1545 TEST CIRCUITS Figure 3. V.10/V.28 Driver Test Circuit W U ODE SELECTIO LTC1545 MODE NAME M2 M1 Not Used (Default V.11 RS530A 0 0 RS530 V.35 1 ...

Page 7

U W SWITCHI WAVEFOR S V OD2 0V B – A –V OD2 t PLH 1. PHL – 1.5V V ...

Page 8

LTC1545 U U APPLICATIONS INFORMATION DTE SERIAL LTC1543 CONTROLLER D1 TXD D2 SCTE D3 R1 TXC RXC R2 RXD R3 LTC1545 RTS D1 DTR D2 D3 DCD R1 DSR R2 R3 CTS Figure ...

Page 9

U U APPLICATIONS INFORMATION DCE/ DTE (DATA LTC1543 DCE/DTE 14 DCE/DTE LTC1545 M0 15 D4ENB 16 R4EN (DATA) Figure 10: Single Port DCE V.35 Mode Selection in the ...

Page 10

LTC1545 U U APPLICATIONS INFORMATION BALANCED INTERCONNECTING GENERATOR CABLE TERMINATION ' Figure 11. Typical V.10 Interface I Z –10V –3V 3V –3.25mA Figure 12. V.10 Receiver Input Impedance ' 20k 6k ...

Page 11

U U APPLICATIONS INFORMATION BALANCED INTERCONNECTING CABLE GENERATOR TERMINATION ' Figure 16. Typical V.28 Interface ' A A LTC1344A 20k 51 124 R2 R4 51.5 20k B ...

Page 12

LTC1545 U U APPLICATIONS INFORMATION Any mismatch in the driver rise and fall times or skew in the driver propagation delays will force current through the center termination resistor to ground, causing a high frequency common mode spike on the ...

Page 13

U TYPICAL APPLICATIONS CHARGE PUMP LTC1543 5 TXD D1 6 SCTE TXC 9 R2 RXC 10 RXD R3 11 ...

Page 14

LTC1545 U TYPICAL APPLICATIONS CHARGE PUMP LTC1543 5 RXD D1 6 RXC TXC 9 R2 SCTE 10 TXD R3 ...

Page 15

... Figure 24. Controller-Selectable Multiprotocol DTE/DCE Port with DB-25 Connector Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 16

... Two RS232 Driver/Receiver Pairs or One RS485 Driver/Receiver Pair 12.67 – 12.93* (0.499 – 0.509 7.65 – 7.90 (0.301 – 0.311 1.73 – 1.99 (0.068 – 0.078) 0.05 – 0.21 (0.002 – 0.008) G36 SSOP 1098 sn1545 1545fas LT/TP 1199 2K REV A • PRINTED IN LINEAR TECHNOLOGY CORPORATION 1998 USA ...

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