General Description
The TH71111 FSK/FM/ASK single-conversion superheterodyne receiver IC is designed for applications in the European 868 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 800 MHz to 930 MHz (e.g. for applications to FCC part 15).

Features
❐ Single-conversion superhet architecture for low external component count
❐ FSK for digital data and FM reception for analog signal transmission
❐ FSK/FM demodulation with phase-coincidence demodulator
❐ Low current consumption in active mode and very low standby current
❐ Switchable LNA gain for improved dynamic range
❐ RSSI allows signal strength indication and ASK detection

Application Examples
❐ Tire Pressure Monitoring Systems (TPMS)
❐ Remote Keyless Entry (RKE)
❐ Wireless access control
❐ Alarm and security systems
❐ Garage door openers
❐ Remote Controls " Home and building automation
❐ Low-power telemetry systems