LTC2873H Просмотр технического описания (PDF) - Analog Devices

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LTC2873H

Single-Bus RS485/RS232 Multiprotocol Transceiver with Switchable Termination

Analog Devices 

LTC2873

TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VCC = VL = 3.3V, unless otherwise noted.

RS232/RS485 Mode Switching

DI

485/232

5V/DIV

B/RI

A/DO

3V/DIV

RS232

RS485

2µs/DIV

2873 G19

Transition from Shutdown to RS232

Driver Output Going High and Low

SHDN

VDD

3V/DIV

VEE

A HIGH

A LOW

40µs/DIV

2873 G20

VDD and VEE Ripple

VDD RIPPLE

10mV/DIV

VEE RIPPLE

40µs/DIV

2873 G21

RS485 READY MODE,

ALL DRIVERS AND RECEIVERS DISABLED

For more information www.analog.com

REV B

9

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