NCN5193_3 Datasheet, PDF (1/14 Pages) ON Semiconductor – HART Modem

NCN5193
HART Modem
Description
The NCN5193 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 NCN5193 also has an
integrated DAC for low-BOM current loop slave transmitter
implementation.
The NCN5193 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
• 1.8 V − 3.5 V Power Supply
• Transmit−signal Wave Shaping
• Receive Band−pass Filter
• Low Power: Optimal for Intrinsically Safe Applications
• Compatible with 1.8 V or 3.3 V Microcontroller
• Internal Oscillator Requires 460.8 kHz, 920 kHz, 1.84 MHz or
3.68 MHz Crystal or Ceramic Resonator
• SPI Communication
• Integrated 17 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
www.onsemi.com
MARKING
DIAGRAM
1 32
QFN32
CASE 488AM
1
NCN
5193
AWLYYWWG
G
NCN5193 = Specific Device Code
A
= Assembly Location
WL = Wafer Lot
YY
= Year
WW = Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
© Semiconductor Components Industries, LLC, 2016
1
September, 2016 − Rev. 3
Publication Order Number:
NCN5193/D