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TH71111 Datasheet(PDF) 8 Page - Melexis Microelectronic Systems |
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TH71111 Datasheet(HTML) 8 Page - Melexis Microelectronic Systems |
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8 / 22 page  TH71111 868/915MHz FSK/FM/ASK Receiver 39010 71111 Page 8 of 22 Data Sheet Rev. 013 June/07 Pin No. Name I/O Type Functional Schematic Description 21 RSSI analog output I (Pi) RSSI 21 50 Ω 36k RSSI output, for RSSI and ASK detection, approx. 36k Ω output impedance 22 VEE_BIAS ground ground of general bias system and OA 23 OUTP analog output FSK/FM positive output, output impedance of 100k Ω to 300kΩ 24 OUTN analog output OUTP OUTN 23 24 50 Ω 20µA 20µA FSK/FM negative output, output impedance of 100k Ω to 300kΩ 25 VEE_RO ground ground of DIV, PFD, RO and charge pump 26 RO analog input RO 26 30p 30p 50k RO input, Colpitts type oscillator with internal feed- back capacitors 27 VCC_PLL supply positive supply of DIV, PFD, RO and charge pump 28 ENRX digital input ENRX 28 1.5k mode control input, CMOS-compatible with internal pull-down circuit 29 LF analog I/O LF 29 200 Ω 400 Ω 4p charge pump output and VCO1 control input 30 VEE_LNA ground ground of LNA biasing 32 VCC_LNA supply positive supply of LNA biasing |
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