The TH71101 FSK/ASK single-conversion superheterodyne receiver IC is designed for applications in the European 433 MHz industrial-scientific-medical (ISM) band, according to the EN 300 220 telecommunications standard. It can also be used for any other system with carrier frequencies ranging from 300 MHz to 450 MHz (e.g. for applications according to FCC part 15 and ARIB STD-T67).