Smar Research HT2015
The HT2015 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 HT2015 is pin-compatible with the SYM20C15.| Part No. | HT2015 |
|---|---|
| Datasheet | HT2015 Download |
| Manufacturer | Smar Research |
| Description | HART Modem |
| Buy | Stock & Price |
FEATURES
● Can be used in designs presently using the SYM20C15 or equivalent type chip● Single-chip, half-duplex 1200 bits per second FSK modem
● Bell 202 shift frequencies of 1200 Hz and 2200 Hz
● 3.3V-5.0V power supply
● Transmit-signal wave shaping
● Receive band-pass filter
● Low power: optimal for intrinsically safe applications
● CMOS compatible
● 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 a 28-pin PLCC and 32-pin LQFP packages (LQFP pictured) ©Smar Research Corporation 1 HT2015DS - 0303 HT2015
GENERAL DESCRIPTION
GENERAL DESCRIPTION
The HT2015 is pin-compatible with the SYM20C15. See the PinDESCRIPTION
and FunctionalDESCRIPTION
sections for details on pin compatibility with the SYM20C15. The HT2015 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.
