LTC2844CG#PBF Linear Technology, LTC2844CG#PBF Datasheet
LTC2844CG#PBF
Specifications of LTC2844CG#PBF
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LTC2844CG#PBF Summary of contents
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... RS232, RS449, EIA530, EIA530-A, V.35, V.36 or X.21 protocols. The LTC2844 operates from a 3.3V supply and supplies provided by the LTC2846. The part is available in a 28-lead SSOP surface mount package. , LTC and LT are registered trademarks of Linear Technology Corporation. DCD DTR RTS RXD ...
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LTC2844 ABSOLUTE AXI U RATI GS (Note 1) Supply Voltage V ....................................................... –0. ..................................................................... V EE ...................................................................... V DD ..................................................................... Input Voltage Transmitters ............................ – 0. Receivers ................................................– 18V to ...
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ELECTRICAL CHARACTERISTICS ture range, otherwise specifications are at T (Notes 2, 3) SYMBOL PARAMETER P Internal Power Dissipation (DCE Mode, D All Digital Pins = GND Logic Inputs and Outputs V Logic Input High Voltage IH ...
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LTC2844 ELECTRICAL CHARACTERISTICS ture range, otherwise specifications are at T (Notes 2, 3) SYMBOL PARAMETER t Input to Output PHL t Input to Output Difference, t PLH V.10 Driver V Output Voltage O V Output Voltage T I Short-Circuit Current ...
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ELECTRICAL CHARACTERISTICS Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: All currents into device pins are positive; all currents out of device are negative. All voltages are referenced ...
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LTC2844 CTIO S V (Pin 1): Positive Supply for the Transceivers. Connect Pin 8 on LTC2846 supply. Connect capacitor to ground. V (Pin 2): Positive ...
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W BLOCK DIAGRA 10k 10k 20k 10k 10k 20k 20k 10k 10k 20k ...
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LTC2844 W U ODE SELECTIO MODE NAME M2 M1 Not Used (Default V.11 RS530A 0 0 RS530 RS449/V. V.28/RS232 Cable 1 1 Not Used (Default ...
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U W SWITCHI WAVEFOR PLH – A 50% – OD2 B – –V OD2 t PLH V OH ...
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LTC2844 U U APPLICATIONS INFORMATION Overview The LTC2846/LTC2844 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. DTE SERIAL LTC2846 CONTROLLER TXD D1 D2 ...
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U U APPLICATIONS INFORMATION Mode Selection The interface protocol is selected using the mode select pins M0, M1 and M2 (see the Mode Selection table). For example, if the port is configured as a V.35 interface, the mode selection pins ...
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LTC2844 U U APPLICATIONS INFORMATION Cable Termination Traditional implementations have included switching resistors with expensive relays, or required the user to change termination modules every time the interface standard has changed. Custom cables have been used with the termination in ...
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U U APPLICATIONS INFORMATION V.11 (RS422) Interface A typical V.11 balanced interface is shown in Figure 14. A V.11 differential generator with outputs A and B with ground C is connected to a differential receiver with ' ' ground C ...
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LTC2844 U U APPLICATIONS INFORMATION V.35 Interface A typical V.35 balanced interface is shown in Figure 18. A V.35 differential generator with outputs A and B with ground C is connected to a differential receiver with ' ' ground C ...
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U U APPLICATIONS INFORMATION BOOST 10 F SWITCHING REGULATOR 4 35 SHDN SHDN FB GND 2, 34 C1,C2: TAIYO YUDEN X5R JMK316BJ106ML D1: ON SEMICONDUCTOR MBR0520 L1: ...
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LTC2844 U TYPICAL APPLICATIO 3. TXD SCTE TXC RXC RXD RTS DTR DCD DSR CTS Figure 23. Controller-Selectable Multiprotocol DTE Port ...
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U TYPICAL APPLICATIO 3. DTE_TXD/DCE_RXD DTE_SCTE/DCE_RXC DTE_TXC/DCE_TXC DTE_RXC/DCE_SCTE DTE_RXD/DCE_TXD DTE_RTS/DCE_CTS DTE_DTR/DCE_DSR DTE_DCD/DCE_DCD DTE_DSR/DCE_DTR DTE_CTS/DCE_RTS DTE_LL/DCE_LL DCE/DTE Figure 24. Controller-Selectable Multiprotocol DTE/DCE Port with DB-25 Connector ...
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LTC2844 U TYPICAL APPLICATIO 3. DTE_TXD/DCE_RXD DTE_SCTE/DCE_RXC DTE_TXC/DCE_TXC DTE_RXC/DCE_SCTE DTE_RXD/DCE_TXD DTE_RTS/DCE_CTS DTE_DTR/DCE_DSR DTE_DCD/DCE_DCD DTE_DSR/DCE_DTR DTE_CTS/DCE_RTS DTE_LL/DCE_RI DTE_RI/DCE_LL DTE_TM/DCE_RL DTE_RL/DCE_TM DCE/DTE Figure 25. Controller-Selectable Multiprotocol DTE/DCE ...
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... Figure 26. 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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... Signals, Generates the Required 5V and 8V Supplies for LTC2846 and Companion Parts www.linear.com 9.90 – 10.50* (.390 – .413 7.40 – 8.20 (.291 – .323 2.0 (.079) 0.05 (.002) G28 SSOP 0802 LT/TP 0503 1K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 2002 sn2844 2844fs ...