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ATA5746C 데이터시트(PDF) 4 Page - ATMEL Corporation |
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ATA5746C 데이터시트(HTML) 4 Page - ATMEL Corporation |
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4 / 42 page ![]() ATA5745C/ATA5746C [DATASHEET] 9249C–RKE–10/14 4 Figure 1-2. Pinning QFN24 Table 1-1. Pin Description Pin Symbol Function 1 TEST2 Test pin, during operation at GND 2 TEST1 Test pin, during operation at GND 3 CLK_OUT Output to clock a connected microcontroller 4 CLK_OUT_CTRL1 Input to control CLK_OUT (MSB) 5 CLK_OUT_CTRL0 Input to control CLK_OUT (LSB) 6 ENABLE Input to enable the XTO 7 XTAL2 Reference crystal 8 XTAL1 Reference crystal 9 DVCC Digital voltage supply blocking 10 VS5V Power supply input for voltage range 4.5V to 5.5V 11 VS3V_AVCC Power supply input for voltage range 2.7V to 3.3V 12 GND Ground 13 LNA_GND RF ground 14 LNA_IN RF input 15 SENSE Sensitivity control resistor 16 SENSE_CTRL Sensitivity selection Low: Normal sensitivity, High: Reduced sensitivity 17 RSSI Output of the RSSI amplifier 18 TEST3 Test pin, during operation at GND 19 RX Input to activate the receiver 20 BR0 Bit rate selection, LSB 21 BR1 Bit rate selection, MSB 22 ASK_NFSK FSK/ASK selection Low: FSK, High: ASK 23 CDEM Capacitor to adjust the lower cut-off frequency data filter 24 DATA_OUT Data output GND Ground/backplane (exposed die pad) TEST3 RSSI LNA_IN LNA_GND SENSE SENSE_CTRL TEST2 789 10 11 12 24 13 14 15 16 17 18 6 5 4 3 2 1 23 22 TEST1 CLK_OUT_CTRL0 ENABLE CLK_OUT_CTRL1 CLK_OUT 21 20 19 |
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