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TH71112

ETC

868/915MHz FSK/FM/ASK Receiver

TH71112 868/915MHz FSK/FM/ASK Receiver Features ! ! ! ! ! ! ! Double superhet architecture for high degree of image reje...


ETC

TH71112

File Download Download TH71112 Datasheet


Description
TH71112 868/915MHz FSK/FM/ASK Receiver Features ! ! ! ! ! ! ! Double superhet architecture for high degree of image rejection FSK for digital data and FM reception for analog signal transmission FM/FSK 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. TH71112 Temperature Range -40 °C to 85°C Package LQFP32 Application Examples ! ! ! ! ! General digital and analog 868 MHz or 915 MHz ISM band usage Low-power telemetry Alarm and security systems Keyless car and central locking Pagers Technical Data Overview ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Input frequency range: 800 MHz to 930 MHz Power supply range: 2.5 V to 5.5 V Temperature range: -40 °C to +85 °C Operating current: 7.5 mA at low gain and 9.2 mA at high gain mode Standby current: < 100 nA 1) with 40 kHz second IF filter BW (incl. SAW front-end filter loss) Sensitivity: -109 dBm 2) Sensitivity: -102 dBm with 150 kHz second IF filter BW (incl. SAW front-end filter loss) Range of first IF: 10 MHz to 80 MHz Range of second IF: 455 kHz to 21.4 MHz Maximum input level: –10 dBm at ASK and 0 dBm at FSK nd Image rejection: > 65 dB (e.g. with SAW front-end filter and at 10.7 MHz 2 IF) Spurious emission: < -70 dBm Input frequency acceptance: ±50 kHz (with AFC option) RSSI range: 70 dB Frequency deviation ran...




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