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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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RFM95 датащи(PDF) 88 Page - Shenzhen Hope Microelectronics Co., Ltd. |
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RFM95 датащи(HTML) 88 Page - Shenzhen Hope Microelectronics Co., Ltd. |
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88 / 121 page  Page 88 RFM95/96/97/98(W) Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: sales@hoperf.com http:// www.hoperf.com WIRELESS & SENSING PRELIMINARY DATASHEET Name (Address) Bits Variable Name Mode Default value FSK/OOK Description RegFrfMsb (0x06) 7-0 Frf(23:16) rw 0x6c MSB of the RF carrier frequency RegFrfMid (0x07) 7-0 Frf(15:8) rw 0x80 MSB of the RF carrier frequency RegFrfLsb (0x08) 7-0 Frf(7:0) rw 0x00 LSB of RF carrier frequency Frf = Fstep × Frf(23;0) Default value: 434.000 MHz The RF frequency is taken into account internally only when: - entering FSRX/FSTX modes - re-starting the receiver Registers for the Transmitter 7 PaSelect rw 0x00 Selects PA output pin 0 RFO pin. Maximum power of +14 dBm 1 PA_BOOST pin. Maximum power of +20 dBm 6-4 MaxPower rw 0x04 Select max output power: Pmax=10.8+0.6*MaxPower [dBm] RegPaConfig (0x09) 3-0 OutputPower rw 0x0f Pout=Pmax-(15-OutputPower) if PaSelect = 0 (RFO pins) Pout=17-(15-OutputPower) if PaSelect = 1 (PA_BOOST pin) 7 unused r 0x00 unused 6-5 ModulationShaping rw 0x00 Data shaping: In FSK: 00 no shaping 01 gaussian filter BT = 1.0 10 gaussian filter BT = 0.5 11 gaussian filter BT = 0.3 In OOK: 00 no shaping 01 filtering with fcutoff = bit_rate 10 filtering with fcutoff = 2*bit_rate (for bit_rate < 125 kb/s) 11 reserved 4 reserved rw 0x00 reserved RegPaRamp (0x0A) 3-0 PaRamp rw 0x09 Rise/Fall time of ramp up/down in FSK 0000 3.4 ms 0001 2 ms 0010 1 ms 0011 500 us 0100 250 us 0101 125 us 0110 100 us 0111 62 us 1000 50 us 1001 40 us (d) 1010 31 us 1011 25 us 1100 20 us 1101 15 us 1110 12 us 1111 10 us |
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