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TH7108 数据表(PDF) 5 Page - Melexis Microelectronic Systems |
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TH7108 数据表(HTML) 5 Page - Melexis Microelectronic Systems |
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5 / 14 page ![]() TH7108 868/915MHz FSK/FM/ASK Transmitter 3901007108 Page 5 of 14 Data Sheet Rev. 008 May/03 3 Pin Definition and Description Pin No. Name I/O Type Functional Schematic Description 1 LF1 output LF1 1 200 Ω charge pump output, con- nection to loop filter 2 SUB ground negative power supply, sub- strate connection 3 DATA input DATA 3 1.8k FSK data input, CMOS-compatible 4 RO2 analog I/O RO2 4 XOSC FSK pulling pin, MOS switch 5 RO1 analog I/O RO1 5 28p 28p 37k XOSC connection to XTAL, Colpitts type crystal oscilla- tor 6 ENTX input ENTX 6 1.1k mode control input, CMOS- compatible with internal pull- down 7 ENCK input ENCK 7 1.1k mode control input, CMOS- compatible with internal pull- down |
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