SD2057
Overview
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.
- Meets HART physical layer requirements
- Bell 202 shift frequencies of 1200Hz and 2200Hz
- Integrated receive filter, minimal external components required
- Buffered HART output for drive capability
- UART interface
- 2.7V to 5.5V power supply
- 112µA maximum supply current in transmit mode
- -55°C to +125°C operation range
- 24pins 4mm х 4mm QFN package
- RoHS compliant
