HT2015 Description
General Description 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 ponents 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-patible with the SYM20C15.
HT2015 Key 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