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TH71221 데이터시트(PDF) 7 Page - Melexis Microelectronic Systems |
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TH71221 데이터시트(HTML) 7 Page - Melexis Microelectronic Systems |
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7 / 44 page ![]() TH71221 27 to 930MHz FSK/FM/ASK Transceiver 39010 071221 Page 7 of 44 Data Sheet Rev. 009 Nov/15 Pin No. Name I/O Type Functional Schematic Description 8 OUT_DTA output OA1 output, high impedance in transmit and idle mode 9 VEE_RO ground ground of RO 10 RO analog I/O RO input, base of bipolar transistor 11 FSK_SW analog I/O FSK pulling pin, switch to ground or OPEN The switch is open in re- ceive and idle mode 12 IN_DTA input ASK/FSK modulation data input, pull down resistor 120k 13 ASK/FSK input ASK/FSK mode select input 14 VCC_DIG supply positive supply of serial port and control logic 15 RE/SCLK input receiver enable input / clock input for the shift register, pull down resistor 120k 16 TE/SDTA input transmitter enable input / serial data input, pull down resistor 120k VCC VEE OUT_DTA 8 36p VEE VCC RO 10 2.6µA 39k 36p VCC VEE FSK_SW 11 VCC VEE IN_DTA 12 120k 120 VEE VCC ASK/FSK 13 120 VCC VEE 120k 120 RE/SCLK 15 VCC VEE 120k 120 TE/SDTA 16 |
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