LTC1543IG Linear Technology, LTC1543IG Datasheet
LTC1543IG
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LTC1543IG Summary of contents
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... The LTC1543 runs from a single 5V supply using an internal charge pump that requires only five space-saving surface mounted capacitors. The part is available in a 28-lead SSOP surface mount package. , LTC and LT are registered trademarks of Linear Technology Corporation. DTR RTS RXD RXC ...
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... V.28 Mode, with Load V.28 Mode, with Load 10mA DD V.28, V.35 Modes, No Load V.28 Mode, Full Load V.35 Mode, Full Load RS530, RS530-A, X.21 Modes, Full Load No-Cable Mode or Power-Up to Turn ORDER PART NUMBER + 28 C2 – LTC1543CG EE 25 GND LTC1543IG D3/ D3/ ...
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ELECTRICAL CHARACTERISTICS ture range (Notes SYMBOL PARAMETER I Logic Input Current IN V Output High Voltage OH V Output Low Voltage OL I Output Short-Circuit Current OSR I Three-State Output Current OZR V.11 Driver ...
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LTC1543 ELECTRICAL CHARACTERISTICS ture range (Notes SYMBOL PARAMETER I Transmitter Output Leakage Current Rise or Fall Time Input to Output PLH t Input to Output PHL t ...
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CTIO S – C1 (Pin 1): Capacitor C1 Negative Terminal. Connect capacitor between C1 and (Pin 2): Capacitor C1 Positive Terminal. Connect capacitor between ...
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LTC1543 TEST CIRCUITS Figure 4. V.10/V.28 Driver Test Circuit W U ODE SELECTIO LTC1543 MODE NAME M2 Not Used (Default V.11) 0 RS530A 0 RS530 0 X.21 0 V.35 1 RS449/V.36 1 V.28/RS232 ...
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U W SWITCHI WAVEFOR 1. PLH – A 50% – OD2 0V B – A –V OD2 t PLH V ...
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LTC1543 U U APPLICATIO S I FOR ATIO Overview The LTC1543/LTC1544 form the core of a complete soft- ware-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 ...
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U U APPLICATIO S I FOR ATIO DTE SERIAL LTC1543 CONTROLLER D1 TXD D2 SCTE D3 R1 TXC RXC R2 RXD R3 LTC1544 D1 RTS DTR D2 D3 DCD R1 DSR R2 R3 CTS Figure 10. Complete ...
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LTC1543 U U APPLICATIO S I FOR ATIO (DATA LTC1543 DCE/DTE LTC1544 14 DCE/DTE (DATA) Figure 11. Single Port DCE V.35 Mode Selection in the Cable 10 ...
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U U APPLICATIO S I FOR ATIO I Z –10V –3V 3V –3.25mA Figure 13. V.10 Receiver Input Impedance V.11 (RS422) Interface A typical V.11 balanced interface is shown in Figure 15. A V.11 differential generator with outputs A and ...
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LTC1543 U U APPLICATIO S I FOR ATIO V.28 (RS232) Interface A typical V.28 unbalanced interface is shown in Figure 17. A V.28 single-ended generator output A with ground C is connected to a single-ended receiver with input A ' ...
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U U APPLICATIO S I FOR ATIO impedance of the receiver is placed in parallel with the T network termination, but does not affect the overall input impedance significantly. The generator differential impedance must be 50 150 and the impedance ...
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LTC1543 U U APPLICATIO S I FOR ATIO DTE vs DCE Operation The DCE/DTE pin acts as an enable for Driver 3/Receiver 1 in the LTC1543, and Driver 3/Receiver 1 and Driver 4/ Receiver 4 in the LTC1544. The INVERT ...
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U TYPICAL APPLICATIO CHARGE PUMP LTC1543 5 TXD D1 6 SCTE TXC 9 R2 RXC 10 RXD R3 ...
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LTC1543 U TYPICAL APPLICATIO CHARGE PUMP LTC1543 5 RXD D1 6 RXC TXC 9 SCTE 10 TXD 11 M0 ...
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U TYPICAL APPLICATIO CHARGE LTC1543 5 DTE_TXD/DCE_RXD D1 6 DTE_SCTE/DCE_RXC DTE_TXC/DCE_TXC 9 DTE_RXC/DCE_SCTE 10 DTE_RXD/DCE_TXD ...
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LTC1543 U TYPICAL APPLICATIO DTE_LL/DCE_TM 6 DTE_TXD/DCE_RXD 7 DTE_SCTE/DCE_RXC DTE_TXC/DCE_TXC 14 DTE_RXC/DCE_SCTE 15 DTE_RXD/DCE_TXD 16 DTE_TM/DCE_LL 20 ...
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... Figure 27. Cable-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. ...
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... Control Signals Including LL, RL and TM 3-Driver/3-Receiver for Data and Clock Signals www.linear.com 0.301 – 0.311 (7.65 – 7.90 0.068 – 0.078 (1.73 – 1.99) 0.002 – 0.008 (0.05 – 0.21) G28 SSOP 0694 sn1534 1543fas LW/TP 1002 1K REV A • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1998 ...