RFM67W Datasheet, PDF (20/37 Pages) List of Unclassifed Manufacturers – ISM TRANSMITTER MODULE

RFM 67W
6.2.2. Data and Data Clock Usage
In MCU mode the data to be transmitted is applied exclusively via the DATA input. The DATA input is sampled at the crystal
frequency, fxosc. Where the MCU mediates the data rate and no gaussian or bit filtering is required, then the use of the data
clock signal is optional. However, where filtering is to be used or the specified data rate accuracy is to be achieved, then
the rising edge of the data clock, DCLK, signal must be used to clock the data into the RFM67W DATA input.
T_DATA T_DATA
DATA (NRZ)
DCLK
Figure 9. RFM67W Data Clock Timing Diagram (Used Only for Filtering and Ensuring Bit Rate Accuracies)
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