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TH72002 Arkusz danych(PDF) 7 Page - Melexis Microelectronic Systems |
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TH72002 Arkusz danych(HTML) 7 Page - Melexis Microelectronic Systems |
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7 / 20 page ![]() TH72002 315MHz ASK Transmitter 3901072002 Page 7 of 20 Data Sheet Rev. 007 June/07 3 Pin Definition and Description Pin No. Name I/O Type Functional Schematic Description 1 ASKDTA input 1.5k Ω 1 0: ENTX=1 1: ENTX=0 ASKDTA ASK data input, CMOS compatible with op- eration mode dependent pull-up circuit TX standby: no pull-up TX active: pull-up 2 n. c. no connection 3 ROI analog I/O ROI 3 36p 36p 25k XOSC connection to XTAL, Colpitts type crystal oscilla- tor 4 ENTX input ENTX 4 1.5k Ω mode control input, CMOS-compatible with in- ternal pull-down circuit 5 PSEL analog I/O PSEL 5 1.5k Ω PSEL I power select input, high- impedance comparator logic TX standby: IPSEL = 0 TX active: IPSEL = 8µA 6 VCC supply positive power supply 7 OUT output OUT 7 VEE VEE VCC power amplifier output, open collector 8 VEE ground negative power supply |
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