TH71102 Datasheet | Melexis

Features ! Double superhet architecture for high degree of image rejection ! 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 ! Surface mount package LQFP32 Ordering Information Part No. Temperature Code E (-40 °C to 85 °C) Package Code NE (LQFP32) Application Examples ! General digital and analog 315 MHz or 433 MHz ISM band usage ! Low-power telemetry ! Alarm and security systems ! Remote Keyless Entry (RKE) ! Tire Pressure Monitoring System (TPMS) ! Garage door openers ! Home automation ! Pagers Pin Description OUTP VEE_BIAS RSSI OAP OAN OUT_OA VCC_BIAS VEE_RO RO VCC_PLL ENRX LF VEE_LNA IN_LNA VCC_LNA 24 25 17 16 OUT_IFA VCC_IF FBC2 FBC1 IN_IFA VEE_IF OUT_MIX2 VEE_LNAC GAIN_LNA OUT_LNA IN_MIX1 VEE_MIX IF_1P IF_1N VCC_MIX General Description The TH71102 FSK/FM/ASK double-conversion superheterodyne receiver IC is designed for applications in the European 433 MHz industrial-scientific-medical (ISM) band, according to the EN 300 220 telemunications standard. It can also be used for any other system with carrier frequencies ranging from 300 MHz to 450 MHz (e.g. for applications in the US 315 MHz ISM band). 3901071102 Rev. 007 Page 1 of 20 Data Sheet Feb./03 315/433MHz FSK/FM/ASK Receiver Document Content 1 Theory of Operation 3 1.1 General 3 1.2 Technical Data Overview 3 1.3 Block Diagram...