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RFM96 数据表(PDF) 53 Page - HOPE Microelectronics CO., Ltd. |
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RFM96 数据表(HTML) 53 Page - HOPE Microelectronics CO., Ltd. |
53 / 121 page Page 53 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 4.2.5.6. Receiver Hopping, Rx to Rx Two methods are possible: First method Timeline 0 TS_HOP +TS_RE Rx Mode, Channel A 1. set new Frf 2. set RestartRxWithPllLock Rx Mode, Channel B Second method Timeline 0 ~TS_HOP Rx Mode, Channel A 1. set FastHopOn=1 2. set new Frf (*) 3. wait for TS_HOP Rx Mode, Channel B (*) RegFrfLsb must be written to trigger a frequency change Figure 21. Receiver Hopping The second method is quicker, and should be used if a very quick RF sniffing mechanism is to be implemented. 4.2.5.7. Tx to Tx 0 ~PaRamp +TS_HOP ~PaRamp +TS_HOP +TS_TR Timeline Tx Mode, Channel A 1. set new Frf (*) 2. set FSTx mode FSTx Set Tx mode Tx Mode, Channel B Figure 22. Transmitter Hopping 4.2.6. Receiver Startup Options The RFM95/96/97/98(W) receiver can automatically control the gain of the receive chain (AGC) and adjust the receiver LO frequency (AFC). Those processes are carried out on a packet-by-packet basis. They occur: When the receiver is turned On. When the Receiver is restarted upon user request, through the use of trigger bits RestartRxWithoutPllLock or RestartRxWithPllLock , in RegRxConfig. When the receiver is automatically restarted after the reception of a valid packet, or after a packet collision. |
类似零件编号 - RFM96 |
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类似说明 - RFM96 |
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