SD2057 Description
The SD2057 is a CMOS single chip modem IC used in Highway Addressable Remote Transducer (HART) field instruments and masters. This IC integrates all necessary filtering, signal detection, modulating, demodulating, and HART signal wave shaping functions. Thus it requires few external passive ponents to satisfy the HART physical layer requirements.
SD2057 Key Features
- Meets HART physical layer requirements
- Bell 202 shift frequencies of 1200Hz and
- Integrated receive filter, minimal external
- Buffered HART output for drive capability
- UART interface
- 2.7V to 5.5V power supply
- 112µA maximum supply current in transmit
- 55°C to +125°C operation range
- 24pins 4mm х 4mm QFN package
- RoHS pliant