NCN5192_14 Datasheet, PDF (1/13 Pages) ON Semiconductor – HART Modem

NCN5192
HART Modem
Description
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.
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, 920 kHz or 1.8 MHz Crystal
or Ceramic Resonator
• SPI Communication
• Integrated 16 bit Sigma-Delta DAC
• Meets HART Physical Layer Requirements
• Industrial Temperature Range of −40°C to +85°C
• Available in 32−pin NQFP Package
• These are Pb−Free Devices
Applications
• HART Multiplexers
• HART Modem Interfaces
• 4 − 20 mA Loop Powered Transmitters
http://onsemi.com
MARKING
DIAGRAM
1 32
QFN32
CASE 488AM
1
NCN
5192
AWLYYWW
G
NCN5192 = Specific Device Code
A
= Assembly Location
WL = Wafer Lot
YY
= Year
WW = Work Week
G
= Pb−Free Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
© Semiconductor Components Industries, LLC, 2014
1
February, 2014 − Rev. 3
Publication Order Number:
NCN5192/D