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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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RF69 датащи(PDF) 68 Page - List of Unclassifed Manufacturers |
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RF69 датащи(HTML) 68 Page - List of Unclassifed Manufacturers |
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68 / 81 page  RF69 Page 67 Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com ----- ----------------- 6.4. Receiver Registers Table 26 Receiver Registers Name (Address) Bits Variable Name Mode Default Value Description Reserved14 (0x14) 7-0 - r 0x40 unused Reserved15 (0x15) 7-0 - r 0xB0 unused Reserved16 (0x16) 7-0 - r 0x7B unused Reserved17 (0x17) 7-0 - r 0x9B unused RegLna (0x18) 7 LnaZin rw 1 * LNA ‟ s input impedance 0 → 50 ohms 1 → 200 ohms 6 - r 0 unused 5-3 LnaCurrentGain r 001 Current LNA gain, set either manually, or by the AGC 2-0 LnaGainSelect rw 000 LNA gain setting: 000 → gain set by the internal AGC loop 001 → G1 = highest gain 010 → G2 = highest gain – 6 dB 011 → G3 = highest gain – 12 dB 100 → G4 = highest gain – 24 dB 101 → G5 = highest gain – 36 dB 110 → G6 = highest gain – 48 dB 111 → reserved RegRxBw (0x19) 7-5 DccFreq rw 010 * Cut-off frequency of the DC offset canceller (DCC): ~4% of the RxBw by default 4-3 RxBwMant rw 10 * Channel filter bandwidth control: 00 → RxBwMant = 16 10 → RxBwMant = 24 01 → RxBwMant = 20 11 → reserved 2-0 RxBwExp rw 101 * Channel filter bandwidth control: FSK Mode: RxBw = ----------------------- FXOSC --------------------- --------------------- RxBwMant 2 Rx B wE x p + 2 OOK Mode: RxBw = ----------------------- FXOSC --------------------- --------------------- RxBwMant 2 Rx BwE x p + 3 See Table 14 for tabulated values RegAfcBw (0x1A) 7-5 DccFreqAfc rw 100 DccFreq parameter used during the AFC 4-3 RxBwMantAfc rw 01 RxBwMant parameter used during the AFC 2-0 RxBwExpAfc rw 011 * RxBwExp parameter used during the AFC |
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