NCN5192GEVB ON Semiconductor

NCN5192 HART Modem Description The NCN5192 is a singlechip, 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 www.onsemi.com including modulation, demodulation, receive filtering, carrier detect, and transmitsignal shaping. In addition, the NCN5192 also has an MARKING integrated DAC for low-BOM current loop slave transmitter DIAGRAM implementation. The NCN5192 uses phase continuous frequency shift keying (FSK) at 1200 bits per second. To conserve power the receive circuits are 1 disabled during transmit operations and vice versa. This provides the NCN 1 32 halfduplex operation used in HART communications. 5192 AWLYYWW QFN32 Features CASE 488AM Singlechip, Halfduplex 1200 Bits per Second FSK Modem Bell 202 Shift Frequencies of 1200 Hz and 2200 Hz NCN5192 = Specific Device Code 3.0 V 5.5 V Power Supply A = Assembly Location Transmitsignal Wave Shaping WL = Wafer Lot YY = Year Receive Bandpass Filter WW = Work Week Low Power: Optimal for Intrinsically Safe Applications = PbFree Package Compatible with 3.3 V or 5 V Microcontroller Internal Oscillator Requires 460.8 kHz, 920 kHz or 1.8 MHz Crystal ORDERING INFORMATION or Ceramic Resonator See detailed ordering and shipping information in the package dimensions section on page 12 of this data sheet. SPI Communication Integrated 16 bit Sigma-Delta DAC Meets HART Physical Layer Requirements Industrial Temperature Range of 40C to +85C Available in 32pin NQFP Package These are PbFree Devices Applications HART Multiplexers HART Modem Interfaces 4 20 mA Loop Powered Transmitters Semiconductor Components Industries, LLC, 2014 1 Publication Order Number: April, 2018 Rev. 4 NCN5192/DNCN5192 BLOCK DIAGRAM VDD VDDA RxAFI RxAF RxA Demodulator RxD FSK IN Logic RxD ENH Rx Comp Rx HP Filter AREF Carrier Detect CD Counter CDREF Carrier Comp DEMODULATOR Numeric TxA Sine TxD Controlled FSK OUT Shaper Oscillator MODULATOR RTS NCN5192 JUMP CS DAC SCLK SPI DAC DATA DACREF VPOR CLK1 Crystal POR BIAS KICK Oscillator RESET CLK2 CBIAS VSS VSSA XOUT XIN Figure 1. Block Diagram NCN5192 ELECTRICAL SPECIFICATIONS Table 1. ABSOLUTE MAXIMUM RATINGS (Note 1) Symbol Parameter Min Max Units T Ambient Temperature 40 +85 C A T Storage Temperature 55 +150 C S T Junction Temperature 40 +85 C J V Supply Voltage 0.3 6.0 V DD V , V DC Input, Output 0.3 V + 0.3 V IN OUT DD Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. CMOS devices are damaged by highenergy electrostatic discharge. Devices must be stored in conductive foam or with all pins shunted. Precautions should be taken to avoid application of voltages higher than the maximum rating. Stresses above absolute maximum ratings may result in damage to the device. www.onsemi.com 2