CMT2380F64
Rev 0.3 | 56/83
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RFS State
RFS is a transition state before switching to RX. Except that the receiver RF module is off, the other modules are turned on, and the
current will be larger than STBY. Because PLL has been locked in the RX frequency, RFS cannot switch to TX. Switching from STBY to
RFS probably requires PLL calibration and stability time of 350 us. Switching from SLEEP to RFS needs to add the crystal start-up and
stability time. Switching from other state to RFS will be completed immediately.
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TFS State
TFS is a transition state before switching to TX. Except that the transmitter RF module is off, the other modules are turned on, and the
current will be larger than STBY. Because PLL has been locked in the TX frequency, TFS cannot switch to RX. Switching from STBY to
TFS probably requires PLL calibration and stability time of 350us. Switching from SLEEP to TFS needs to add the crystal start-up and
settled time. Switching from other state to TFS will be completed immediately.
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RX State
All modules on the receiver will be opened in RX state. Switching from RFS to RX requires only 20 us. Switching from STBY to RX
needs to add the PLL calibration and settled time of 350 us. Switching from SLEEP to RX needs to add the crystal start-up and
settled time. TX can be quickly switched to RX by sending go_switch command. Whether the TX and RX setting frequency is the
same, the user need to wait for the PLL re-calibration and settled time of 350 us to switch successfully.
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TX State
All modules on the transmitter will be opened in TX state. Switching from TFS to TX requires only 20 us. Switching from STBY to TX
needs to add the PLL calibration and settled time of 350 us. Switching from SLEEP to TX needs to add the crystal start-up and
settled time. RX can be quickly switched to TX by sending go_switch command. Whether the RX and TX setting frequency is the
same, the user need to wait for the PLL re-calibration and settled time of 350 us to switch successfully.
