Full Feature HART Modem

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Overview

The NCN5192 is a single-chip, CMOS modem for use in highway addressable remote transducer (HART) field instruments and masters. The modem and a few external passive components provide all of the functions needed to satisfy HART physical layer requirements including modulation, demodulation, receive filtering, carrier detect, and transmit-signal shaping. In addition, the NCN5192 also has an integrated DAC for low-BOM current loop slave transmitter implementation. The NCN5192 uses phase continuous frequency shift keying (FSK)at 1200 bits per second. To conserve power the receive circuits are disabled during transmit operations and vice versa. This provides the half-duplex operation used in HART communications.

  • HART Multiplexers
  • HART Modem Interfaces
  • 4 20 mA Loop Powered Transmitters
  • Industrial Equipment
  • Low Power
  • Bell 202 shift frequencies of 1200 Hz and 2200 Hz
  • Transmit-signal wave shaping
  • Integrated 16 bit Sigma-Delta DAC
  • Meets HART physical layer requirements
  • SPI Communication
  • Receive band-pass filter

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NCN5192MNRG

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Active

CAD Model

Pb

A

H

P

QFN-32

3

260

REEL

5000

N

HART

1200 baud

1

1

3

5.5

0.02

670

5.0E-4

$2.0815

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