onsemi A5191HRT
The A5191HRT 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. The A5191HRT uses phase continuous frequency shift keying (FSK) at 1200 bits per second.| Part No. | A5191HRT |
|---|---|
| Datasheet | A5191HRT Download |
| Manufacturer |  onsemi |
| Description | HART Modem |
| Buy | Stock & Price |
DESCRIPTION
To conserve power the receive circuits are disabled during transmit operations and vice versa. This provides the half-duplex operation used in HART communications.FEATURES
● Single-chip, Half-duplex 1200 Bits per Second FSK Modem● Bell 202 Shift Frequencies of 1200 Hz and 2200 Hz
● 3.0 V − 5.5 V Power Supply
● Transmit-signal Wave Shaping
● Receive Band-pass Filter
● Low Power: Optimal for Intrinsically Safe
APPLICATIONS
● Compatible with 3.3 V or 5 V Microcontroller● Internal Oscillator Requires 460.8 kHz Crystal or Ceramic Resonator
● Meets HART Physical Layer Requirements
● Industrial Temperature Range of −40 C to +85 C
● Available in 28-pin PLCC, 32-pin QFN and 32-pin LQFP Packages
● These are Pb-Free Devices
APPLICATIONS
● HART Multiplexers● HART Modem Interfaces
● 4 − 20 mA Loop Powered Transmitters DATA SHEET PLCC-28 P SUFFIX CASE 776AA QFN-32 N SUFFIX CASE 488AM LQFP-32 L SUFFIX CASE 561AB MARKING DIAGRAMS (Top Views) 1 28 A5191HRTPG AWLYYWW A5191 HRTL AWLYYWW...
