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RFM69W Datasheet, PDF (19/78 Pages) List of Unclassifed Manufacturers – ISM TRANSCEIVER MODULE
RFM69W
3.3. Transmitter Description
The transmitter of RFM69W comprises the frequency synthesizer, modulator and power amplifier blocks.
3.3.1. Architecture Description
LNA
RFIO
Receiver Chain
PA0
Local
Oscillator
PA1
PA_BOOST
PA2
Figure 5. Transmitter Block Diagram
3.3.2. Bit Rate Setting
When using the RFM69W in Continuous mode, the data stream to be transmitted can be input directly to the modulator via
the DIO2/DATA pin in an asynchronous manner, unless Gaussian filtering is used, in which case the DCLK signal on the
DIO1/DCLK pin is used to synchronize the data stream. See section 3.3.5 for details on the Gaussian filter.
In Packet mode or in Continuous mode with Gaussian filtering enabled (refer to section 5.5 for details), the Bit Rate (BR) is
controlled by bits BitRate in RegBitrate:
BR = --F----X---O----S--C----
BitRate
Amongst others, the following Bit Rates are accessible:
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